This oven baked omelet is a delightful and easy-to-make dish that is perfect for breakfast or brunch. With a combination of fresh bell peppers, onions, and shredded cheese, it offers a burst of flavors in every bite. The best part is that it requires minimal effort and can be prepared in just a few simple steps.
Most of the ingredients for this recipe are commonly found in your kitchen. However, if you don't usually stock bell peppers or shredded cheese, you might need to pick them up at the supermarket. Fresh bell peppers add a sweet and crunchy texture, while shredded cheese melts beautifully to give the omelet a rich, creamy flavor.

Ingredients For Oven Baked Omelet Recipe
Eggs: The base of the omelet, providing structure and protein.
Milk: Adds creaminess and helps to blend the ingredients together.
Shredded cheese: Melts into the omelet, adding a rich, cheesy flavor.
Bell peppers: Adds a sweet and crunchy texture to the omelet.
Onions: Provides a savory depth of flavor.
Salt: Enhances the overall taste of the omelet.
Pepper: Adds a hint of spice and balances the flavors.
Technique Tip for This Recipe
For a fluffier texture, separate the egg whites from the yolks and beat the whites until they form soft peaks before folding them back into the yolk mixture. This will add extra volume and lightness to your oven baked omelet.
Suggested Side Dishes
Alternative Ingredients
eggs - Substitute with egg whites: For a lower cholesterol option, use egg whites instead of whole eggs.
eggs - Substitute with tofu: Crumbled tofu can mimic the texture of eggs and is a great vegan alternative.
milk - Substitute with almond milk: Almond milk is a dairy-free alternative that works well in baked dishes.
milk - Substitute with coconut milk: Coconut milk adds a rich, creamy texture and a slight sweetness.
shredded cheese - Substitute with nutritional yeast: Nutritional yeast provides a cheesy flavor and is a vegan option.
shredded cheese - Substitute with dairy-free cheese: There are many plant-based cheeses available that melt well.
diced bell peppers - Substitute with diced zucchini: Zucchini provides a similar texture and mild flavor.
diced bell peppers - Substitute with diced tomatoes: Tomatoes add a juicy texture and a slightly tangy flavor.
diced onions - Substitute with green onions: Green onions offer a milder flavor and a bit of color.
diced onions - Substitute with shallots: Shallots provide a sweeter and more delicate onion flavor.
salt - Substitute with soy sauce: Soy sauce adds a savory umami flavor and reduces the need for additional salt.
salt - Substitute with herb seasoning: Herb seasoning blends can add flavor without the need for extra salt.
pepper - Substitute with cayenne pepper: Cayenne pepper adds heat and a different flavor profile.
pepper - Substitute with paprika: Paprika provides a mild heat and a smoky flavor.
Other Alternative Recipes
How To Store / Freeze This Dish
- Allow the oven baked omelet to cool completely before storing. This helps prevent condensation, which can make the omelet soggy.
- Cut the omelet into individual portions. This makes it easier to store and reheat only what you need.
- Wrap each portion tightly in plastic wrap or aluminum foil. This helps maintain freshness and prevents the omelet from absorbing other odors in the fridge or freezer.
- Place the wrapped portions in an airtight container or a resealable plastic bag. Label the container or bag with the date to keep track of how long it has been stored.
- Store the omelet portions in the refrigerator for up to 3-4 days. For longer storage, place the portions in the freezer, where they can be kept for up to 2 months.
- To reheat from the refrigerator, unwrap the portion and place it on a microwave-safe plate. Microwave on high for 1-2 minutes or until heated through.
- To reheat from the freezer, unwrap the portion and place it on a microwave-safe plate. Microwave on a low setting for 2-3 minutes, then increase to high for an additional 1-2 minutes, or until heated through.
- Alternatively, reheat the omelet in the oven. Preheat the oven to 350°F (175°C), place the portion on a baking sheet, and cover with aluminum foil. Bake for 10-15 minutes or until heated through.
- For a crispier texture, consider reheating the omelet in a non-stick skillet over medium heat. Cook for 2-3 minutes on each side or until warmed through and slightly crispy.
How To Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the leftover oven baked omelet in an oven-safe dish.
- Cover the dish with aluminum foil to prevent it from drying out.
- Heat for about 10-15 minutes, or until the omelet is warmed through.
- Remove the foil for the last few minutes if you want a slightly crispy top.
Microwave Method:
- Place a slice of the omelet on a microwave-safe plate.
- Cover it with a microwave-safe lid or another plate to retain moisture.
- Heat on medium power for 1-2 minutes, checking halfway through to ensure it heats evenly.
- Let it sit for a minute before serving to allow the heat to distribute.
Stovetop Method:
- Heat a non-stick skillet over medium-low heat.
- Add a small amount of butter or olive oil to the pan.
- Place the omelet in the skillet and cover with a lid.
- Heat for about 5 minutes, flipping halfway through to ensure even warming.
- Serve immediately once heated through.
Air Fryer Method:
- Preheat your air fryer to 300°F (150°C).
- Place the omelet in the air fryer basket.
- Heat for 3-5 minutes, checking halfway through to ensure it doesn't overcook.
- Remove and let it cool slightly before serving.
Best Tools for This Recipe
Oven: Used to bake the omelet at a consistent temperature of 375°F (190°C).
Mixing bowl: Used to whisk together the eggs and milk and to mix in the other ingredients.
Whisk: Essential for combining the eggs and milk smoothly.
Baking dish: The container where the omelet mixture is poured and baked.
Measuring cups: Used to measure out the milk, cheese, bell peppers, and onions accurately.
Cutting board: Provides a safe surface for dicing the bell peppers and onions.
Knife: Used to dice the bell peppers and onions finely.
Cooking spray: Used to grease the baking dish to prevent the omelet from sticking.
Oven mitts: Protects your hands when placing the baking dish in the oven and removing it once the omelet is done.
How to Save Time on This Recipe
Prep ingredients ahead: Dice the bell peppers and onions the night before to save time in the morning.
Use pre-shredded cheese: Opt for pre-shredded cheese to cut down on prep time.
Mix in a blender: Combine eggs, milk, and seasonings in a blender for a quick and even mix.
Line the baking dish: Use parchment paper to line the baking dish for easy cleanup.
Batch cooking: Double the recipe and bake in a larger dish to have leftovers for the week.

Oven Baked Omelet
Ingredients
Main Ingredients
- 6 large eggs
- ½ cup milk
- ½ cup shredded cheese
- ½ cup diced bell peppers
- ¼ cup diced onions
- to taste Salt
- to taste Pepper
Instructions
- Preheat oven to 375°F (190°C).
- In a bowl, whisk together eggs and milk.
- Stir in cheese, bell peppers, onions, salt, and pepper.
- Pour mixture into a greased baking dish.
- Bake for 25 minutes or until the omelet is set and golden brown.
Nutritional Value
Keywords
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