Vegetable Frittata With Asiago Cheese

I remember the first time I made a frittata. It was a Sunday morning, the sun was streaming through the kitchen window, and I had a fridge full of leftover veggies from the week’s farmers market haul. I tossed them into a pan with some eggs and cheese, not really knowing what to expect, and the result was pure magic. The way the sweet roasted red pepper played against the salty Asiago, the gentle bite of spinach, all held together by the fluffy egg base… It became a weekend staple, and this particular vegetable frittata is a firm favorite in my home.

Recipe Overview

• Prep Time: 15 minutes
• Cook Time: 15 minutes
• Total Time: 30 minutes
• Servings: 6
• Yield: 1 frittata
• Dietary Type: Vegetarian

Ingredients

• 1 1⁄2 teaspoons olive oil
• 1 medium red onion, chopped
• 1 red bell pepper, coarsely chopped
• 1 medium zucchini, chopped
• 2 cups packed spinach leaves, torn into 1-inch pieces
• 3 large eggs
• 6 large egg whites
• 1⁄2 teaspoon salt
• 1⁄4 teaspoon ground black pepper
• 1 ounce shaved Asiago cheese
• 1 cup chopped tomato
• 1 tablespoon chopped fresh basil

Equipment Needed

• 10-inch-diameter nonstick skillet
• Medium bowl
• Whisk

Instructions

1. Begin by preheating your broiler. This will give the frittata a beautiful golden finish.

2. Next, heat the olive oil in a 10-inch-diameter nonstick skillet over medium-high heat. Make sure the skillet is truly nonstick; otherwise, the frittata might cling to the bottom.

3. Add the chopped red onion and red bell pepper to the skillet and sauté until they are golden and softened, about 8 minutes. Stir occasionally to ensure even cooking and prevent burning. The onions should become translucent and fragrant.

4. Introduce the chopped zucchini to the skillet. Sauté until the zucchini is tender, which should take around 5 minutes. Again, stir periodically.

5. Add the torn spinach leaves to the skillet. Stir until the spinach is wilted, about 1 minute. Spinach cooks down very quickly, so keep a close eye on it.

6. Season the vegetable mixture in the skillet with salt and pepper. This step enhances the natural flavors of the vegetables.

7. In a medium bowl, whisk together the eggs, egg whites, salt, and pepper until well blended. The mixture should be light and slightly frothy. Using egg whites in addition to whole eggs lightens the frittata without sacrificing protein.

8. Pour the egg mixture over the hot vegetables in the skillet. Stir gently to combine, ensuring the eggs are evenly distributed among the vegetables. Reduce the heat to medium-low.

9. Cook the frittata without stirring until the eggs are set on the bottom, about 5 minutes. You’ll notice the edges start to firm up first. The center will still be a bit wobbly, which is fine.

10. Sprinkle the shaved Asiago cheese evenly over the frittata. The cheese will melt beautifully under the broiler, adding a salty, nutty flavor.

11. Place the skillet under the preheated broiler until the cheese melts and is lightly browned, about 2 minutes. Watch it carefully, as it can burn quickly!

12. Remove the frittata from the broiler and sprinkle with the chopped tomato and fresh basil. The fresh herbs and tomatoes add a burst of freshness and color.

Expert Tips & Tricks

• Even cooking: To ensure the frittata cooks evenly, you can start it on the stovetop and finish it in a preheated oven (350°F or 175°C) instead of using the broiler. This is especially useful if your broiler is very powerful or uneven.
• Vegetable variations: Don’t be afraid to experiment with different vegetables. Mushrooms, asparagus, or even roasted sweet potatoes would be delicious additions.
• Preventing sticking: If you’re concerned about the frittata sticking, you can lightly grease the skillet with olive oil or cooking spray before adding the vegetables.
• Make-ahead: Frittatas are great for meal prepping. You can cook the vegetables and whisk the eggs ahead of time, storing them separately in the refrigerator. When ready to cook, simply combine and proceed with the recipe.
• Flavor boost: A pinch of red pepper flakes added to the vegetables will give the frittata a subtle kick. You could also add a clove of minced garlic to the onions and peppers for extra flavor.

Serving & Storage Suggestions

This vegetable frittata with Asiago cheese is delicious served warm or at room temperature. It makes a fantastic brunch dish, light lunch, or even a simple supper. Serve it with a side salad or a slice of crusty bread for a complete meal.

Leftover frittata can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, you can microwave it in short bursts until warmed through, or bake it in a preheated oven at 350°F (175°C) for about 10-15 minutes. It’s best to avoid freezing frittatas as the texture can become somewhat rubbery.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	134.9 kcal	N/A
Calories from Fat	5.8 g	38%
Total Fat	5.8 g	8%
Saturated Fat	1.5 g	7%
Cholesterol	139.5 mg	46%
Sodium	446.5 mg	18%
Total Carbohydrate	8.9 g	2%
Dietary Fiber	2.5 g	10%
Sugars	5.4 g	N/A
Protein	12.2 g	24%

Note: Nutritional information is an estimate and can vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Cheese variations: If you don’t have Asiago cheese, you can substitute Parmesan, Gruyere, or even feta cheese.
• Dairy-free: To make this frittata dairy-free, omit the cheese or use a vegan cheese alternative. Nutritional yeast can add a cheesy flavor.
• Egg substitutions: If you’re short on eggs, you can use all whole eggs instead of adding extra egg whites, just use 5 eggs in total.
• Seasonal vegetables: Adapt the recipe to use whatever vegetables are in season. In the spring, try asparagus and peas. In the fall, consider adding butternut squash or Brussels sprouts.

FAQs (Frequently Asked Questions)

Q: Can I use frozen vegetables?
A: Yes, you can use frozen vegetables. Just be sure to thaw and drain them well before adding them to the skillet to prevent a watery frittata.

Q: How do I know when the frittata is done?
A: The frittata is done when the eggs are set on the bottom and the cheese is melted and lightly browned. A slight wobble in the center is okay, as it will continue to cook after it’s removed from the broiler.

Q: Can I add meat to this frittata?
A: Absolutely! Cooked bacon, sausage, or ham would be delicious additions. Add the meat to the skillet along with the vegetables.

Q: What if I don’t have a nonstick skillet?
A: If you don’t have a nonstick skillet, you can use a regular skillet, but be sure to grease it well to prevent the frittata from sticking. Alternatively, you can line the skillet with parchment paper.

Q: Can this frittata be made ahead of time and reheated?
A: Yes, frittatas are great for making ahead of time. Store it in the refrigerator for up to 3 days and reheat it in the oven or microwave before serving.

Final Thoughts

This vegetable frittata with Asiago cheese is a simple, versatile, and delicious dish that’s perfect for any occasion. It’s a great way to use up leftover vegetables, and it’s packed with protein and nutrients. I encourage you to try this recipe and make it your own by adding your favorite vegetables and cheeses. Experiment with different flavor combinations and let me know what you come up with! I hope you enjoy this frittata as much as I do. Pair it with a crisp glass of white wine or a refreshing mimosa for the ultimate brunch experience. Happy cooking!