Ingredients
Vegetables
- 1 cup diced yellow onion
- 1 cup chopped baby spinach
- 1 cup cherry tomatoes, sliced in half
- ½ cup sliced mushrooms
Dairy & Eggs
- 8 large eggs
- ½ cup shredded mozzarella cheese (cheddar or parmesan can be substituted)
- ½ cup heavy cream (alternatively Greek yogurt or sour cream)
Spices
- ½ tsp ground mustard
- ½ tsp garlic powder
- ½ tsp salt
- ¼ tsp ground black pepper
Instructions
- Preheat the oven: Preheat your oven to 350°F (175°C). Prepare your quiche pan or pie dish by spraying it with nonstick cooking spray and placing it on top of a baking sheet.
- Layer the vegetables: Evenly spread 1 cup of diced yellow onion in the pan, then sprinkle 1 cup chopped baby spinach over the onions. Arrange 1 cup of halved cherry tomatoes on top, followed by ½ cup shredded cheese and ½ cup sliced mushrooms. Layering helps keep the veggies evenly distributed in the frittata.
- Whisk the egg mixture: In a medium bowl, whisk together 8 large eggs, ½ cup heavy cream, ½ tsp ground mustard, ½ tsp garlic powder, ½ tsp salt, and ¼ tsp ground black pepper until fully combined and smooth.
- Pour over veggies: Gently pour the egg mixture over the layered vegetables in the pan, allowing it to seep around but helping the veggies stay in place. Use a fork to rearrange vegetables if needed.
- Bake the frittata: Place the pan in the oven and bake for 40-45 minutes, or until a toothpick inserted into the center comes out clean, indicating it’s fully cooked and fluffy.
- Cool and serve: Remove the frittata from the oven and let it cool for a few minutes. Slice it into wedges and serve with optional toppings such as hot sauce, salsa, avocado, or sour cream for extra flavor.
Notes
- You can substitute mozzarella with cheddar or parmesan cheese based on your preference.
- Heavy cream can be replaced with Greek yogurt or sour cream for a tangy twist and slightly lighter texture.
- Feel free to customize with additional vegetables, herbs, or spices to suit your taste.
- Make sure not to overbake to avoid a dry frittata; check doneness with a toothpick.
- Prep Time: 10 minutes
- Cook Time: 40-45 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
