Winding Creek Ranch

menu icon
subscribe
search icon
×
Sign up for FREE weekly recipes! →

Fluffy Oven-Baked Western Omelet Casserole

4.94 from 31 votes

Updated: · Published: by: · 11 Comments This post may contain affiliate links

Nutrition

Serving: 1grams | Calories: 228kcal | Carbohydrates: 7g | Protein: 19g | Fat: 14g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Cholesterol: 308mg | Sodium: 783mg | Potassium: 261mg | Fiber: 1g | Sugar: 5g | Vitamin A: 1493IU | Vitamin C: 36mg | Calcium: 198mg | Iron: 1mg

The provided nutrition information is automatically calculated. Accuracy is not guaranteed.

Love this recipe?Follow Winding Creek Ranch on Pinterest!!

This fluffy Oven-Baked Western Omelet Casserole is the easiest way to make a Western omelet. It's the ideal make-ahead breakfast casserole with eggs, tender ham, bell peppers, and mushrooms. This family favorite is perfect for busy mornings!

Oven baked fluffy omelet casserole made with fresh peppers, cheese, and ham.

Want to save this recipe?

Enter your email & I'll send it to your inbox. Plus, get great new recipes from me every week!

Save Recipe

This breakfast egg casserole is an EASY recipe that can be made ahead of time and refrigerated, just like this Eggs Benedict Casserole with Hollandaise Sauce or this Bisquick Breakfast Casserole.

And there's no standing at the stove cooking a traditional omelet like my Spinach Mushroom Omelette With Feta Cheese.

For another great make-ahead brunch option, check out the Best Spinach and Bacon Quiche - perfect for holiday mornings!

Jump to:

🧡 Why You'll Love This Recipe

🥘 Recipe Ingredients

Make this Western omelette using simple ingredients from your local grocery store.

Ingredient Notes:

See the printable recipe card for exact measurements and a complete list of ingredients.

The ingredients needed to make a fluffy omelet casserole measured out and placed on a wooden table.

🍳 How To Make Oven-Baked Western Omelet Casserole

Step-By-Step Instructions

A whisk mixing the eggs until combined.

Step 1: Preheat your oven to 350 degrees F. Use a whisk or hand mixer to beat eggs in a large mixing bowl.

The seasoning salt added to the large bowl containing the egg mixture.

Step 2: Add milk, seasoning salt, and black pepper to the fluffy eggs. Whisk to combine.

The diced ham being added to the bowl of egg mixture.

Step 3: Add the diced ham and shredded cheddar cheese.

The sliced mushrooms being added to the glass bowl containing the egg mixture.

Step 4: Add the bell peppers and mushrooms. Stir to combine.

The egg mixture being poured into a greased glass baking dish.

Step 5: Pour the egg mixture into a greased 9 x 12 baking dish or large skillet.

The baked omelet casserole in the baking dish on a cooling rack on a wooden table.

Step 6: Bake for 45 minutes in the preheated oven until the top is golden brown and the eggs are set. Cut the casserole into squares and serve immediately.

Variations

This baked Denver omelet casserole is easy to modify to suit your tastes.

🥗 Serving suggestions

Serve this Western baked omelet with:

💭 Expert Tips

📖 What else can you put in this easy breakfast casserole?

A square of fluffy omelet casserole cut into a square and placed on a small plate.

❓ FAQs

Can I use egg whites only?

Yes, you can substitute whole eggs with egg whites if you want a lower-calorie option. Just be aware that the texture may be slightly different.

Can I make this recipe ahead of time?

Yes, you can make this omelet casserole ahead of time, cover it with plastic wrap, and store it in the fridge. Reheat it in the oven or microwave before serving.

How do I know when the omelet is cooked?

The omelet is cooked when it is puffed up, golden brown and a toothpick inserted in the center comes out clean. This should take about 45 minutes in the oven.

Can I add more seasoning to the recipe?

Yes, you can adjust the seasoning to your liking. You can add more salt, pepper, or other spices.

👪 More Easy Breakfast Recipes

More Recipes You'll Love

If you like this Fluffy Oven-Baked Omelet Casserole, please take a moment to leave a star rating 🌟🌟🌟🌟🌟 and share it on social media!

Printable Recipe

Oven baked fluffy omelet casserole made with fresh peppers, cheese, and ham.
Pin Recipe Print Recipe
4.94 from 31 votes

Easy Fluffy Oven-Baked Omelet Casserole Recipe

This fluffy oven-baked omelet casserole is an easy breakfast idea that my family loves, and it takes less than 15 minutes of prep before baking.
Prep Time15 minutes
Cook Time45 minutes
Total Time1 hour
Course: Breakfast
Cuisine: American
Servings: 8
Calories: 228kcal
Author: Jeri Walker

Ingredients

  • 12 eggs
  • 1½ cup milk
  • ¾ teaspoon seasoning salt
  • ¼ teaspoon black pepper
  • 1½ cup diced ham
  • 1 cup shredded cheddar cheese
  • 1½ cup finely chopped bell peppers
  • 1 cup canned mushrooms drained

Instructions

  • Preheat oven to 350 degrees F.
  • Whisk together the eggs in a large bowl.
    12 eggs
  • Add milk, seasoning salt, and black pepper. Whisk to combine.
    1½ cup milk, ¾ teaspoon seasoning salt, ¼ teaspoon black pepper
  • Stir in diced ham, cheddar cheese, bell peppers, and mushrooms. Stir to combine.
    1½ cup diced ham, 1 cup shredded cheddar cheese, 1½ cup finely chopped bell peppers, 1 cup canned mushrooms
  • Pour into a greased 9 x 12 baking dish.
  • Bake at 350 degrees F for 45 minutes until golden brown on top and eggs are set.
  • Cut the casserole into squares and serve.

Video

Save This Recipe 💌

Enter your email below and I'll send the recipe straight to your inbox! Plus, you'll get new recipes from me each week!

Notes

  • Whisk the eggs well to ensure they are fully combined and aerated to create a light and fluffy texture.
  • Let the omelet rest for a few minutes before serving to help it set.
  • Add spinach, tomatoes, or onions to give it extra flavor.
  • Don't overcook the omelet. It should be slightly firm to the touch but still moist and tender.
  • If using vegetables that release moisture, such as fresh mushrooms or tomatoes, sauté them in a separate pan before adding them to the egg mixture to prevent the omelet from becoming watery.
  • Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, microwave on high for 30 seconds to 1 minute or until heated through.
    •  
    •  
    •  
    •  

    Nutrition

    Serving: 1grams | Calories: 228kcal | Carbohydrates: 7g | Protein: 19g | Fat: 14g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Cholesterol: 308mg | Sodium: 783mg | Potassium: 261mg | Fiber: 1g | Sugar: 5g | Vitamin A: 1493IU | Vitamin C: 36mg | Calcium: 198mg | Iron: 1mg

    The provided nutrition information is automatically calculated. Accuracy is not guaranteed.

    Love this recipe?Follow Winding Creek Ranch on Pinterest!!

    More Easy & Delicious Winter Recipes

    About Jeri Walker

    Jeri Walker is a recipe developer, food photographer, and recipe writer. She creates easy, flavor-packed recipes for the smoker, air fryer, and busy home kitchens that are designed to work every time. Her recipes and grilling expertise have been featured on MSN, FoodTalk, The Kitchn, Trivet Recipes, and more. When she’s not testing new recipes, she’s usually behind the camera or planning what to cook next.

    Comments

    1. Lynn says

      5 stars
      I've made this a few times now and always comes out perfectly. I use red, orange and green bell peppers, and top with green onions. I stir halfway through, and cook it at 355 since my oven seems to take longer to cook this. Thank you for the awesome recipe!!

      Reply

      • Jeri Walker says

        I'm so glad you like this recipe, Lynn! Thank you for sharing your tips, and thank you for coming back to rate the recipe and leaving a comment! I appreciate it! 🙂

        Reply

    2. Brenda says

      5 stars
      WONDERFUL!!! I served to weekend company (2 people that we had only met) and they couldn’t stop raving about this!!!
      Thank you for sharing!

      Reply

      • Jeri says

        Thank you for trying our oven baked omelet casserole, Brenda. I'm so glad you and your guests enjoyed it! It's one of our favorites! Thanks for taking the time to come back and leave a comment! 🙂

        Reply

    3. Mihaela | https://theworldisanoyster.com/ says

      5 stars
      I used to make oven-baked omelettes (when I had more time at hand, LOL), and spinach and courgettes were always among the ingredients. Broccoli too, since my fussy eater likes it, paradoxically:) You just reminded me how nicely they turn up!

      Reply

    4. Jean says

      5 stars
      when I first saw the photo I knew it already looks delicious and can be served on occasions too!

      Reply

    5. Nora says

      5 stars
      Yum! This looks so delicious! Can't wait to try it out and have a bite! Thank you for sharing!

      Reply

    6. Freya says

      5 stars
      How delicious and cheesy this looks! And so easy too!

      Reply

    7. Kay says

      5 stars
      A great recipe that even my fussy eater daughter enjoyed! Is now a weekly meal in our house.

      Reply

    8. Amy says

      5 stars
      This was such a great idea and honestly, so much easier, especially when I'm feeding quite a few people. I especially loved it because it enabled me to get rid of some of the vegetables that were in the fridge. They were fluffy as you said and you're right, high in protein and low in carbs is such an added bonus.

      Reply

    9. Linda says

      5 stars
      This omelet casserole is delicious! So flavorful and easy to prep and clean up.

      Reply
    4.94 from 31 votes (22 ratings without comment)

    Leave a Reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating