Baked Omelette

4.67 from 3 votes

This Baked Omelette is a high-protein, gluten-free, delicious breakfast to prep ahead for the week. Customize the add-ins to your liking and double the batch to freeze an unbaked one for later.

Prep Time10

Cook Time20

Total Time30

Course: Breakfast

Cuisine: American

Keyword: oven omelette

Servings: servings

Calories: 257kcal

Author: Rachel Tiemeyer

Ingredients

Cooking spray
1 1/2 teaspoons avocado oil or olive oil
1 cup diced veggies like bell peppers, onion, mushrooms, zucchini, kale, etc.
9 large eggs
1/2 cup whole milk sub: plain dairy-free milk
1 cup shredded cheddar cheese sub: feta crumbles, shredded Swiss, Colby jack or pepper jack
1/2 cup cooked breakfast meat like chopped deli ham, crumbled breakfast sausage, or chopped bacon
1/2 teaspoon salt
1/4 teaspoon pepper
Optional: fresh chopped spinach or herbs like parsley or basil

Instructions

Prep: Preheat oven to 400°F degrees. Grease an 8x8 or 9x9 casserole dish with cooking spray.
Saute Veggies: In a medium skillet, heat the oil over medium-high heat until shimmery. Add the diced veggies. Season lightly with salt and pepper. Stir occasionally until the vegetables are softened, about 4-5 minutes. Remove from heat and set aside. (This would also be a good time to cook the meat, if it isn't already.)
Combine: In a large mixing bowl, beat the eggs and milk until combined. Stir in cheese, veggies, and cooked meat. Note: If you want to add fresh chopped spinach or herbs, this would be the time to do it.
Bake: Pour egg mixture into the casserole dish. Bake for 20-25 minutes, just until eggs are set in the middle. Let cool slightly before slicing.

Notes

Dairy-Free Version: Use plain non-dairy milk (i.e. almond milk) and omit the cheese or use dairy-free cheese like Daiya brand.
Instead of sautéing the veggies, you can instead add them to a microwave-safe bowl and toss with oil. Cover with a paper towel and microwave for 4-5 minutes, until softened.
I don't recommend freezing this dish after baking, unless you cut it into slices to put on Breakfast Sandwiches. They freeze great!
My favorite baking dish for this casserole is the Caraway Square Baking Pan. If you want to freeze it in a dish and bake later, try the Oxo Freezer-to-Oven Dish.

Nutrition