This zucchini oven frittata is a delightful and easy-to-make dish that is perfect for any meal of the day. With its light and fluffy texture, combined with the savory flavors of parmesan cheese and fresh zucchini, this frittata is sure to become a favorite in your household. It's a great way to use up extra zucchini and can be customized with additional ingredients to suit your taste.
Most of the ingredients for this recipe are common pantry staples, but you might need to pick up fresh zucchini and parmesan cheese if you don't have them on hand. Zucchini is usually found in the produce section, while parmesan cheese can be found in the dairy or specialty cheese section. Make sure to get a good quality parmesan cheese for the best flavor.

Ingredients For Zucchini Oven Frittata
Zucchini: Fresh, medium-sized zucchini adds a mild, slightly sweet flavor and a tender texture to the frittata.
Eggs: The base of the frittata, providing structure and richness.
Milk: Adds creaminess and helps to create a light, fluffy texture.
Parmesan cheese: Adds a savory, umami flavor and a slight nuttiness to the dish.
Salt: Enhances the flavors of the other ingredients.
Black pepper: Adds a touch of heat and depth to the frittata.
Technique Tip for This Recipe
When preparing the zucchini for this oven frittata, make sure to slice them evenly to ensure they cook uniformly. A mandoline slicer can be particularly helpful for achieving consistent thickness. Additionally, lightly salting the zucchini slices and letting them sit for a few minutes can help draw out excess moisture, which will prevent the frittata from becoming too watery.
Suggested Side Dishes
Alternative Ingredients
zucchini - Substitute with yellow squash: Yellow squash has a similar texture and mild flavor, making it a great alternative.
zucchini - Substitute with eggplant: Eggplant can provide a slightly different texture but works well in baked dishes.
eggs - Substitute with egg whites: For a lower cholesterol option, you can use egg whites instead of whole eggs.
eggs - Substitute with silken tofu: Silken tofu can be blended to create a similar consistency to eggs, making it a good vegan alternative.
milk - Substitute with almond milk: Almond milk is a dairy-free option that can be used to maintain the creamy texture.
milk - Substitute with soy milk: Soy milk is another dairy-free alternative that works well in baked dishes.
parmesan cheese - Substitute with pecorino romano: Pecorino Romano has a similar salty and nutty flavor, making it a good substitute.
parmesan cheese - Substitute with nutritional yeast: Nutritional yeast provides a cheesy flavor and is a great vegan option.
salt - Substitute with sea salt: Sea salt can be used in the same quantity and provides a similar flavor.
salt - Substitute with kosher salt: Kosher salt has a coarser texture but can be used in the same amount for a similar taste.
black pepper - Substitute with white pepper: White pepper has a slightly different flavor but can be used as a direct substitute.
black pepper - Substitute with cayenne pepper: For a spicier kick, cayenne pepper can be used, but reduce the quantity to avoid overpowering the dish.
Other Alternative Recipes Similar to This Dish
How to Store or Freeze This Recipe
Allow the zucchini oven frittata to cool completely at room temperature before storing. This prevents condensation from forming inside the storage container, which can make the frittata soggy.
Once cooled, slice the frittata into individual portions. This makes it easier to grab a quick meal or snack without having to defrost the entire dish.
For short-term storage, place the slices in an airtight container or wrap them tightly in plastic wrap. Store in the refrigerator for up to 3-4 days.
For longer storage, wrap each slice individually in plastic wrap or aluminum foil. Then, place the wrapped slices in a freezer-safe bag or container. Label with the date to keep track of freshness.
When ready to enjoy, reheat refrigerated slices in the microwave for about 1-2 minutes, or until heated through. For a crispier texture, reheat in a preheated oven at 350°F (175°C) for about 10 minutes.
To reheat frozen slices, you can either thaw them overnight in the refrigerator or use the defrost setting on your microwave. Once thawed, follow the same reheating instructions as for refrigerated slices.
If you prefer, you can reheat the frozen frittata slices directly from the freezer. Place them in a preheated oven at 350°F (175°C) for about 20-25 minutes, or until heated through and slightly crispy on the edges.
Avoid reheating the frittata multiple times, as this can affect the texture and flavor. Reheat only the portions you plan to eat immediately.
How to Reheat Leftovers
Oven Method: Preheat your oven to 350°F (175°C). Place the leftover zucchini oven frittata in an oven-safe dish. Cover it with aluminum foil to prevent it from drying out. Heat for about 10-15 minutes, or until warmed through. This method helps maintain the frittata's texture and flavor.
Microwave Method: Place a slice of the frittata on a microwave-safe plate. Cover it with a microwave-safe lid or another plate to trap moisture. Heat on medium power for 1-2 minutes, checking halfway through. Be cautious not to overheat, as this can make the frittata rubbery.
Stovetop Method: Heat a non-stick skillet over medium-low heat. Add a small amount of olive oil or butter to the pan. Place the frittata slice in the skillet and cover with a lid. Heat for about 5 minutes, flipping halfway through, until warmed evenly. This method can give the frittata a slightly crispy edge.
Air Fryer Method: Preheat your air fryer to 300°F (150°C). Place the frittata slice in the air fryer basket. Heat for about 5-7 minutes, checking halfway through. This method is quick and helps retain the frittata's texture.
Toaster Oven Method: Preheat your toaster oven to 350°F (175°C). Place the frittata on a piece of aluminum foil or a small baking tray. Heat for about 10 minutes, or until warmed through. This method is convenient and effective for small portions.
Best Tools for This Recipe
Oven: Used to bake the frittata at a consistent temperature of 375°F (190°C).
Mixing bowl: Used to whisk together the eggs, milk, salt, and pepper, and to combine all ingredients.
Whisk: Used to thoroughly mix the eggs, milk, salt, and pepper.
Knife: Used to slice the zucchini into even pieces.
Cutting board: Provides a safe surface for slicing the zucchini.
Measuring cups: Used to measure out the milk and grated parmesan cheese accurately.
Baking dish: The container in which the frittata mixture is poured and baked.
Grater: Used to grate the parmesan cheese if it is not pre-grated.
Oven mitts: Used to safely handle the hot baking dish when removing it from the oven.
Cooling rack: Allows the frittata to cool slightly before slicing and serving.
How to Save Time on Making This Recipe
Pre-slice zucchini: Slice the zucchini in advance and store in the fridge to save time during preparation.
Use a blender: Blend the eggs, milk, salt, and pepper together for a quick and even mixture.
Pre-grated cheese: Buy pre-grated parmesan cheese to eliminate the need for grating.
Non-stick spray: Use a non-stick spray on the baking dish for easy cleanup and to save time on greasing.
Batch cooking: Double the recipe and bake in a larger dish to have leftovers for the week.

Zucchini Oven Frittata
Ingredients
Main Ingredients
- 2 medium zucchini sliced
- 6 eggs
- ½ cup milk
- ½ cup grated Parmesan cheese
- 1 teaspoon salt
- ½ teaspoon black pepper
Instructions
- Preheat your oven to 375°F (190°C).
- In a mixing bowl, whisk together the eggs, milk, salt, and pepper.
- Add the sliced zucchini and grated Parmesan cheese to the egg mixture.
- Pour the mixture into a greased baking dish.
- Bake in the preheated oven for 25 minutes, or until the frittata is set and golden brown.
- Let it cool slightly before slicing and serving.
Nutritional Value
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