Recipe By SerenaBloom
Published Apr 2nd
Croissant and Salmon Breakfast Casserole
Prep 20m Cook 55m Additional - Ready In 1h 15m
Servings 1 9x13-inch casserole Calories 491.8

Delicious breakfast casserole that is great for Sunday brunch or Christmas morning!

Recipe Ingredients

  • 3 tablespoons butter
  • ½ white onion, chopped
  • 2 cloves garlic, minced
  • 12 eggs
  • ½ cup milk
  • 6 croissants, split - tops set aside and bottoms torn into 1-inch pieces
  • 2 green onions, thinly sliced
  • 4 ounces smoked salmon, chopped
  • 1 cup shredded Monterey Jack cheese
  • 1 cup shredded Swiss cheese
  • 1 cup shredded mozzarella cheese
  • 2 tablespoons chopped fresh dill
  • 1 teaspoon salt
  • freshly cracked black pepper to taste

Cooking Directions

  1. 1 Preheat oven to 400 degrees F (200 degrees C).
  2. 2 Melt butter in a large skillet over medium heat, and cook and stir the onion and garlic until onion is translucent, about 5 minutes. Remove from heat. In a bowl, beat the eggs with the milk until frothy and thoroughly blended.
  3. 3 Place the torn pieces of croissant bottom into a 9x13-inch nonstick baking dish in an even layer. Top the croissant pieces with the cooked onions and garlic in a layer, followed by layers of green onions, smoked salmon, Monterey Jack cheese, Swiss cheese, mozzarella cheese, and dill. Pour the egg mixture evenly over the casserole, and sprinkle with salt and black pepper. Arrange the tops of the croissants over the casserole, pressing them down into the egg mixture to moisten.
  4. 4 Bake the casserole in the preheated oven until the croissant tops are browned and the eggs are set, about 50 minutes. Serve hot.

Nutrition Facts

  • Calories 491.8
  • Carbohydrate 24.1 g
  • Cholesterol 357.6 mg
  • Fat 32 g
  • Fiber 1.5 g
  • Protein 26.9 g
  • Saturated Fat 16.9 g
  • Sodium 1052.8 mg
  • Sugar 7.2 g


  1. I made this for a holiday brunch with 8 guests. I changed the recipe a bit, in addition to the 6 split croissants I add 2 or 3 more, which I tore completely into little pieces . I layered as directed, but added steamed asparagus, only used shredded Swiss and mozzarella cheese, which I didn't - Read more ...
  2. This was just alright I think it just needs a sauce maybe hollandaise?
  3. I've made this twice and everyone loved it! Try it with asparagus which goes well with salmon
  4. Big hit for Christmas brunch!! I left out the green onions (some people were not onion fans) used a lb. of smoked salmon cream instead of milk and baked at 350 for 50 minutes. A special dish (not your ordinary casserole) for a special day!
  5. I made this Christmas morning and it was delicious! I found the baking time was a bit too long and too high. I would recommend 40 mins on 375. The flavors really compliment each other. I will make this recipe again and again!
  6. Made this dish today for Sunday brunch with my daughter....delicious but made a few changes...used red onion and added a teaspoon of red wine vinegar and a teaspoon of sugar when cooking the onions/garlic. Substituted shredded sharp cheddar instead of swiss and agree that it cooks up perfectly at between 25-30 minutes at 400 degrees. - Read more ...
  7. This casserole is delicious. I recommend only baking for 35 minutes. I found 50 to be too long. Thank you for the recipe.
  8. Delicious can't wait to make it again.
  9. AWESOME! I made this for Christmas breakfast and EVERYONE loved it. I made it again on New Years morning from memory (it's pretty easy) and left out a couple things on accident. The original is perfect!