Easy Vegetarian Breakfast Casserole Recipes for Busy Mo

Breakfast is often called the most important meal of the day, but that doesn’t mean it has to be complicated or time-consuming. For those who prefer a meat-free start, easy vegetarian breakfast casserole recipes are a fantastic option.

These casseroles are not only hearty and satisfying but also packed with wholesome vegetables, protein-rich eggs, and melty cheese that bring comfort to your morning table. Whether you’re preparing for a busy weekday or a relaxed weekend brunch, a vegetarian breakfast casserole can be assembled ahead of time and baked to perfection when you’re ready.

Plus, they’re incredibly versatile, inviting you to mix and match your favorite veggies and spices.

In this post, you’ll find a simple yet delicious vegetarian breakfast casserole recipe that will quickly become a staple in your kitchen. We’ll break down the ingredients, equipment, step-by-step instructions, and share some handy tips and variations to customize this dish to your liking.

If you love this recipe, be sure to check out other tasty options like our Vegan Casserole Recipes for quick weeknight dinners and the flavorful Vegan Slow Cooker Recipe for Easy, Delicious Meals.

Why You’ll Love This Recipe

This vegetarian breakfast casserole is a perfect blend of convenience, nutrition, and flavor. It’s easy to prepare with simple ingredients that you likely have on hand.

The recipe is highly adaptable, allowing you to incorporate seasonal vegetables or your favorite cheeses for a personalized twist.

It’s also a crowd-pleaser, making it ideal for family breakfasts, brunches with friends, or meal prepping for busy mornings. Because it bakes in one dish, cleanup is a breeze, and the casserole can be served hot or at room temperature without losing its charm.

Plus, it’s packed with protein and fiber to keep you energized all morning long.

Ingredients

Equipment

• 9×13 inch baking dish
• Mixing bowl
• Whisk
• Frying pan
• Cutting board and knife
• Measuring cups and spoons
• Spatula or wooden spoon

Instructions

1. Preheat your oven to 350°F (175°C). Grease your 9×13 inch baking dish with a little olive oil or non-stick spray to prevent sticking.
2. Prepare the vegetables: Heat olive oil in a frying pan over medium heat. Add diced onion and garlic and sauté until soft and fragrant, about 3-4 minutes.
3. Add bell peppers and spinach to the pan and cook for another 3-5 minutes until the spinach wilts and peppers soften. Remove from heat and set aside.
4. In a large mixing bowl, whisk together the eggs and milk until fully combined. Stir in salt, pepper, and dried herbs.
5. Add the sautéed vegetables, cherry tomatoes, shredded cheese, and bread cubes to the egg mixture. Gently fold everything together so the bread soaks up the egg mixture evenly.
6. Pour the mixture into your prepared baking dish, spreading it out evenly.
7. Bake uncovered for 40-45 minutes, or until the top is golden brown and a knife inserted in the center comes out clean.
8. Remove from oven and allow to cool for 5 minutes before slicing and serving. This helps the casserole set and makes it easier to cut.

Tips & Variations

Tip: For an extra fluffy texture, separate the egg yolks and whites. Whisk the whites until stiff peaks form and fold them in last.

Variation: Swap the whole wheat bread for cubed sweet potatoes or cooked quinoa for a gluten-free version. You can also add mushrooms, zucchini, or kale for different vegetable combos.

Make it vegan: Replace eggs with a chickpea flour batter or silken tofu blend, and use vegan cheese alternatives. Check out our Vegan Casserole Recipes for inspiration.

Nutrition Facts

Serving Suggestions

This casserole pairs wonderfully with fresh fruit or a mixed green salad for a complete and balanced breakfast. For a touch of sweetness, serve alongside a drizzle of maple syrup or fruit compote.

If you’re planning a brunch, complement the casserole with some warm, homemade bread or try our Vegan Flour Tortilla Recipe Easy, Soft, and Homemade for a delightful side. A hot cup of coffee or herbal tea rounds out the meal perfectly.

Conclusion

Easy vegetarian breakfast casseroles are a brilliant way to start your day with wholesome ingredients and minimal fuss. This recipe combines fresh vegetables, protein, and fiber in a hearty dish that satisfies both your taste buds and nutritional needs.

With simple prep and flexible ingredients, it’s a versatile go-to for busy mornings or leisurely weekend brunches.

Whether you’re cooking for yourself, family, or friends, this casserole can be customized to suit any palate or dietary preference. Try mixing in your favorite spices or swapping vegetables based on the season.

And don’t forget to explore other delicious recipes like our Veggie Quesadilla Recipe Indian Style Easy & Delicious and Vegan Chocolate Milk Recipe Easy and Delicious Guide to keep your mornings exciting and flavorful.

Happy cooking!

{“@context”: “https://schema.org/”, “@type”: “Recipe”, “name”: “Easy Vegetarian Breakfast Casserole”, “image”: [], “author”: {“@type”: “Organization”, “name”: “GluttonLv”}, “description”: “A simple and hearty vegetarian breakfast casserole packed with veggies and cheese. Perfect for a quick and nutritious morning meal.”, “prepTime”: “PT15M”, “cookTime”: “PT40M”, “totalTime”: “PT55M”, “recipeYield”: “6 servings”, “recipeIngredient”: [“6 large eggs”, “1 cup milk”, “1 cup shredded cheddar cheese”, “1 cup chopped spinach”, “1 cup diced bell peppers”, “1 cup chopped mushrooms”, “1/2 cup chopped onions”, “2 cloves garlic, minced”, “1 cup frozen hash browns, thawed”, “1/2 teaspoon salt”, “1/4 teaspoon black pepper”, “1 tablespoon olive oil”], “recipeInstructions”: [{“@type”: “HowToStep”, “text”: “Preheat oven to 375\u00b0F (190\u00b0C).”}, {“@type”: “HowToStep”, “text”: “Heat olive oil in a skillet over medium heat and saut\u00e9 onions, garlic, mushrooms, bell peppers, and spinach until soft.”}, {“@type”: “HowToStep”, “text”: “In a large bowl, whisk eggs and milk together. Season with salt and pepper.”}, {“@type”: “HowToStep”, “text”: “Add saut\u00e9ed vegetables, hash browns, and half of the cheese to the egg mixture. Stir to combine.”}, {“@type”: “HowToStep”, “text”: “Pour mixture into a greased 9×9 inch baking dish.”}, {“@type”: “HowToStep”, “text”: “Sprinkle remaining cheese on top.”}, {“@type”: “HowToStep”, “text”: “Bake for 35-40 minutes or until the casserole is set and golden on top.”}, {“@type”: “HowToStep”, “text”: “Let cool for 5 minutes before serving.”}], “nutrition”: {“calories”: “280 kcal”, “proteinContent”: “18 g”, “fatContent”: “16 g”, “carbohydrateContent”: “15 g”}}