Welcome to Cosmo's Diner, a beloved culinary gem located at 26 Front St N in Thorold, ON. This charming eatery captures the essence of a retro fifties diner, delivering a delightful dining experience that keeps patrons coming back for more.
The menu is a vibrant tapestry of breakfast classics, featuring customer favorites like the “YOU ARE FABULOUS” breakfast, loaded with perfectly cooked eggs, crispy bacon, and hearty home fries. Diners rave about the generous portions and quality, noting that each dish is prepared to perfection and arrives piping hot.
Beyond the food, the atmosphere is a highlight. Friendly and attentive staff make every visit feel like a welcoming family reunion. With endless coffee and a funky decor that echoes nostalgia, Cosmo's Diner is a must-visit destination for anyone in the Niagara region seeking comfort food in a delightful setting.
A chocolate cake pancake filled with warm nutella lava, sprinkled with icing sugar & topped with whipped cream.
"You haven't really lived life until you've eaten the comet" is a peanut butter and jam sandwich dipped in pancake batter, then deep-fried and sprinkled with icing sugar.
Two slices of french toast sprinkled with cinnamon sugar.
Two pancakes with your choice of blueberries or strawberries then topped with whipped cream.
Two decadent sandwiches dipped in french toast batter and stuffed with your favorite filling, then grilled and sprinkled with cinnamon sugar.
One order comes with two-pancakes.
BLT. Sandwich.
One order comes with two large eggs and bakery-fresh bread toasted.
One order comes with two-piece bacon or two-sausage or smoked ham with two large eggs and bakery-fresh bread toasted.
One order comes with one piece of thick hand-cut peameal bacon, two large eggs, and bakery-fresh bread toasted.
Slices of avocado on bakery fresh bread toasted topped with 2 large scrambled eggs.
One order comes with one slice of bacon, one large egg and one pancake.
2 slices of bacon OR 2 sausages 2 eggs.
One order comes with two-piece bacon or two-sausage or smoked ham with two large eggs, home fries and bakery-fresh bread toasted.
One order comes two-pieces of fresh toast sprinkled with cinnamon sugar.
One order comes with a fried egg sandwich on an english muffin, with cheese and bacon.
One order comes with a cheddar cheese omelette made with two large eggs, and bakery-fresh bread toasted.
Ham Cheddar omelette made with 2 eggs bakery fresh bread toasted.
One slice of bacon one egg one piece of French toast.
One stuffed french toast [You Pick!].
Tater tots Montreal cheese curds bacon hollandaise topped with 2 eggs Bakery fresh bread. [Thanks Ewen!].
Home fries topped with thinly sliced rib eye steak a dollop of shashuka stewed black beans asiago sliced avocado 2 large eggs served with bakery fresh bread toasted.
Home fries topped with smoky bacon, onion, spinach, roasted red peppers, feta cheese, sliced avocado, two large eggs, and served with bakery fresh bread toasted.
Two thick slices of hand-cut peameal bacon with two large eggs.
One thick slice of hand-cut peameal bacon and three slices of smoky bacon.
A slice of smoked ham, a thick slice of hand cut peameal bacon, two sausage links, two slices of smoky bacon, and two large eggs.
Made in house. This spicy Italian sausage is served with two large eggs.
A New York striploin garnished with truffle mayo.
Spinach, provolone, asiago, onions, roasted red pepper, and mushroom.
Served with two large eggs scrambled with smoked salmon, tomatoes, capers, and provolone cheese.
Served with two large eggs scrambled with honey ham, onion, roasted red pepper, and cheddar cheese.
Order comes with thinly sliced rib-eye steak and caramelised onions mushrooms.
One order comes with oh Montreal cheeses.
Served with caramelised onions, spinach, roasted red pepper, tomatoes, and avocado.
Served with slow and low cooked pulled pork, house-made barbecue sauce, and chipotle mayo.
Start counting to have breakfast your way.
Six bacon, six sausages, Six scrambled eggs, and four french toast sprinkled with cinnamon sugar. Served with home fries or tater tots. One order serves two to three people.
Six bacon, six sausages, Six scrambled eggs, and four pancakes served with home fries or tater tots. One order serves two to three people.
All beef burger topped with smoky bacon, avocado slices, fresh lettuce, tomatoes, pickles, caramelised onions, and chipotle mayo.
Served with smoky bacon, sauteed mushrooms, asiago cheese, a sunny side up egg, truffle aioli fresh lettuce and tomatoes, pickles and caramelised onions, on all-beef burger.
Hummus shakshuka made with rainbow peppers onions tomatoes topped with avocado and cheddar sunny side up egg. [Served spicy or mild].
Served with lettuce, tomatoes, pickles, and caramelised onions.
Served with peanut butter and smoky bacon.
Served with lettuce, tomatoes, pickles, and caramelised onions.
All beef burger topped with smoky bacon and hand-cut peameal bacon, lettuce, tomatoes, pickle, caramelised onions, and cheddar cheese.
All beef burger topped with slow and low cooked pulled pork, house-made barbecue sauce, lettuce, tomatoes, pickles and caramelised onions.
Served with lettuce, tomatoes, pickles, and caramelised onions.
Crisp romaine, smoky bacon, and shaved parmesan in a house-made caesar dressing.
Crisp romaine, olives, fresh tomatoes, and feta cheese tossed in a house-made vinaigrette.
Romaine julienned ham, grated cheddar, sliced tomatoes, and slices of boiled egg in a house-made vinaigrette.
Slices of oven-roasted chicken breast, smoky bacon, crisp romaine, fresh tomatoes, slices of boiled egg, and slices of avocado in house-made vinaigrette.
Romaine, chef's choice of today's fresh vegetables, and house-made vinaigrette.
Smoky bacon, onions, mushrooms, green peppers, and tomatoes.
Turkey Sausage, Onion, Roasted Red Pepper, Spinach.
Shakshuka sauce made with rainbow peppers, onions, tomatoes. [Served spicy or mild {just like love}].
Cooked slow and low in-house pulled pork, smoky barbecue sauce, sauteed onions, and mushrooms.
Smoky bacon, ham, and sausage.
Ham, onion, and roasted red peppers.
Sauteed mushrooms, onions, green peppers, and tomatoes.
Made in-house spicy Italian sausage, tomatoes, and onions.
Lemon Ricotta filled crepe with vanilla custard fresh fruit of the day whipped cream!
2 lemon ricotta pancakes warm blueberry compote garnish whipped cream.
A peanut butter and jam stuffed french toast dipped in pancake batter, deep-fried then sprinkled with icing sugar.
Two decadent sandwiches dipped in french toast batter and stuffed with your favorite filling, then grilled and sprinkled with cinnamon sugar.
2 pancakes made with pure matcha green tea served with matcha maple syrup whipped ricotta fresh fruit of the day.
One order comes with three-piece of french toast.
Two chocolate cake pancakes filled with chocolate Nutella lava and topped with icing sugar , then sprinkled with chocolate chips.
Choice of four toppings.
Butter poached lobster, bacon, and cheddar.
Turkey bacon, Turkey Sausage, Cheddar.
Cooked slow and low in-house pulled pork, house-made barbecue sauce, onions, roasted red peppers, and cheddar cheese.
Smoked ham, onion, and cheddar cheese.
Choice of cheddar cheese, provolone cheese or asiago cheese.
Cheese, shakshuka sauce made with rainbow peppers onions tomatoes. [Served Spicy or Mild].
Fresh tomatoes, olives, and feta cheese.
Made in-house spicy Italian sausage, sauteed onions, sauteed tomatoes, and provolone cheese.
Thinly sliced rib eye, sauteed onions, and mushrooms, and melted cheddar cheese on a bakery fresh steak bun.
Breaded chicken tenders, fresh lettuce, cheddar cheese, chipotle mayo dressing wrapped in a grilled tortilla.
One order comes with slices of oven-roasted chicken breast, ham, smoky bacon, fresh lettuce, and tomatoes on fresh bakery bread toasted in this triple-decker classic.
Our version of a sloppy-joe sandwich, made with Cosmo's in house spicy Italian sausage patty, caramelised onions, tomato topped with provolone cheese on a bakery fresh sub bun.
Corned beef on bakery fresh marble rye grilled and topped with sauerkraut, provolone cheese and Russian dressing.
Served with cream cheese, slices of avocado, and smoked salmon, topped with a large scrambled egg, and capers.
Served with cream cheese, slices of avocado, two scrambled eggs, ham, pineapple habanero chutney, and toasted pumpkin seeds.
Served with double-smoked bacon, slices of avocado, topped with a large scrambled truffle egg, and mushrooms.
Served with hummus, Za'atar, slices of avocado, grilled tomatoes, caramelised onions, 2 scrambled eggs, and balsamic glaze drizzle.
Served with roasted red pepper, slices of avocado, and spinach, topped with a large scrambled egg, and feta cheese.
Served with slices of avocado, two scrambled eggs, dollop of shakshuka, stewed black beans, and mushrooms.
Shakshuka made with rainbow peppers, onions, and tomatoes, topped with beef kefta meatballs spinach feta 2 poached eggs. Served with toast for dipping. [Sub vegetarian version {no kefta}].
Avocado halves filled with 2 large scrambled eggs onion spinach mushrooms roasted red peppers feta garnished with balsamic vinaigrette. Served with today's fresh fruit.
A plate of Cosmo's home fries topped with Montreal cheese curds and gravy, then topped with two large eggs and creamy hollandaise sauce, served with bakery fresh bread toasted.
A towering stack of pancakes layered just like a lasagna with the first layer stuffed with scrambled eggs and bacon, the second layer scrambled eggs and cheddar cheese, the third layer with scrambled eggs and ham, then smothered in hollandaise sauce.
Two large eggs served with bakery fresh bread toasted, and a large serving of today's fresh fruit.
Order comes with tuna, smoky bacon, and tomatoes.
Just a grilled cheese please.
One order comes with smoky bacon, sauteed onion, mushroom, and spinach.
One order comes with tomatoes & basil pesto.
One order comes with turkey bacon, avocado and tomatoes.
One order comes with oven-roasted chicken, bacon, and roasted red pepper.
Smoky bacon or turkey bacon.
One order comes with smoky bacon and fried egg.
One order comes with smoked ham.
One order comes with smoky bacon and caramelised onions.
Slow-cooked pulled pork, house-made barbecue sauce, smoked ham, pickles, and yellow mustard.
One order comes with lobster, spinach, and tomatoes.
This sandwich is made with three large eggs filled with smoked ham, onion, roasted red pepper, and cheddar cheese on bakery-fresh toasted.
Served with scrambled eggs with smokey bacon, sausage, and ham, cheddar cheese in a grilled tortilla.
Served with black forest ham, melted provolone cheese, on bakery-fresh bread dipped in french toast batter.
Served with two large soft scrambled eggs on a gourmet bun with chipotle mayo, cheddar cheese, and caramelised onions for extra nirvana add bacon and avocado.
Home Fries with spinach, sauteed onion and mushroom, tomatoes, and feta cheese, topped with two large eggs, served with bakery fresh bread toasted.
Home fries with sauteed mushrooms and onions, thinly sliced rib-eye steak, cheddar cheese topped with two large eggs, served with bakery fresh bread toasted.
Home fries topped with sauteed roasted red peppers, onion and corned beef, then topped with two large eggs, served with bakery fresh bread toasted.