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Are you searching for the perfect make-ahead breakfast that’s both delicious and nutritious? These Cheese and Spinach Mini Frittatas are your answer! Whether you’re following a keto lifestyle, meal prepping for the week, or simply need a grab-and-go breakfast solution, this frittata recipe delivers on all fronts.
Mini frittatas have become a breakfast staple in American kitchens, and for good reason. They’re versatile, freezer-friendly, and absolutely delicious. Unlike a traditional potato frittata or bacon frittata that serves a crowd, these individual portions give you complete control over your breakfast routine.
Table of Contents
Why You’ll Love This Mini Frittata Recipe
This veggie frittata recipe stands out from other frittata recipes breakfast options because it’s incredibly simple yet packed with flavor. The combination of sharp cheddar cheese and nutrient-rich spinach creates a satisfying bite that keeps you full all morning long.
These mini frittatas work perfectly as egg dishes for dinner too! Serve them alongside a fresh salad, and you’ve got a complete meal that’s ready in under 30 minutes. They’re also ideal for keto frittata recipes collections since they’re naturally low in carbs and high in protein.
Essential Equipment for Perfect Mini Frittatas
Before we dive into the recipe, let’s talk about the essential tools you’ll need. A quality mini muffin pan is crucial for achieving that perfect shape and even cooking. You’ll also want a reliable mixing bowl for whisking your eggs and a good frying pan for sautéing the vegetables.
Having the right kitchen utensils makes the process smoother, and a quality chef’s knife ensures you can chop your spinach and onions with ease.
Ingredients You’ll Need
Here’s everything you need to make these delightful mini egg white frittata recipes:
| Ingredient | Amount | Notes |
|---|---|---|
| Olive oil | 2 Tablespoons | For sautéing vegetables |
| Onion | ⅓ cup, finely chopped | Yellow or white onion works best |
| Spinach | ½ cup, chopped | Fresh spinach preferred |
| Large eggs | 4 | Room temperature works best |
| Almond milk | 2 tablespoons | Can substitute regular milk |
| Cheddar cheese | ½ cup, shredded | Sharp cheddar recommended |
| Fresh chives | 2 Tablespoons, chopped | Adds bright flavor |
| Dried thyme | 1 teaspoon | Complements the cheese |
| Kosher salt | ½ teaspoon | To taste |
| Ground black pepper | ¼ teaspoon | Freshly ground preferred |
Step-by-Step Instructions
Preparation Phase
- Begin by preheating your oven to 350°F. This ensures even cooking throughout.
- Prepare your mini muffin pan with cooking spray or line with mini cupcake liners. This step is crucial for easy removal.
- Gather all your ingredients and equipment on your cutting board for efficient workflow.
Cooking the Vegetables
- Heat the olive oil in your frying pan over medium-high heat using your stovetop.
- Add the finely chopped onions and sauté for approximately 2 minutes, stirring occasionally with your kitchen utensils until they become translucent.
- Add the chopped spinach and sauté for one additional minute, just until wilted.
- Remove from heat and allow the mixture to cool slightly. This prevents the eggs from cooking prematurely when mixed.
Creating the Egg Mixture
- In a large mixing bowl, crack the eggs and whisk them together with the almond milk until well combined.
- Add the shredded cheddar cheese, freshly chopped chives, dried thyme, kosher salt, and ground black pepper.
- Fold in the cooled onion and spinach mixture, ensuring all ingredients are evenly distributed.
Baking Your Mini Frittatas
- Using a spoon or small ladle, carefully pour the egg mixture into each mini muffin cup, filling them about ¾ full.
- Place the pan in your preheated oven and bake for 18-20 minutes.
- The frittatas are done when the centers are set and no longer jiggly. A toothpick inserted in the center should come out clean.
- Remove from the oven and let cool for 5 minutes before removing from the pan.

Pro Tips for Perfect Oven Baked Frittatas
- Room Temperature Eggs: Taking your eggs out of the refrigerator 30 minutes before cooking helps them whisk more smoothly and cook more evenly.
- Don’t Overfill: Leave a little space at the top of each muffin cup to allow the frittatas to puff up without overflowing.
- Cheese Variations: While cheddar is classic, feel free to experiment with gruyere, feta, or parmesan for different flavor profiles.
- Meal Prep Magic: These mini frittatas store beautifully in the refrigerator for up to 5 days or in the freezer for up to 3 months.
- Reheating: Microwave for 30-45 seconds or warm in a 300°F oven for 10 minutes for best results.
Nutritional Benefits
This veggie frittata isn’t just delicious it’s nutritious too! Each serving provides high-quality protein from the eggs and cheese, while the spinach adds iron, vitamins A and C, and folate. The onions contribute antioxidants and anti-inflammatory compounds.
For those following keto frittata recipes, each mini frittata contains approximately 3-4g of carbohydrates, making them an excellent choice for low-carb diets. The healthy fats from the olive oil and eggs help keep you satisfied between meals.
Customization Ideas
The beauty of this frittata recipe is its versatility. Here are some popular variations:
- Bacon Frittata: Add crumbled cooked bacon to the egg mixture for a heartier version
- Potato Frittata: Include diced, pre-cooked potatoes for a more substantial breakfast
- Vegan Frittata: Use chickpea flour and plant-based cheese for a completely vegan version
- Mediterranean Style: Add sun-dried tomatoes, olives, and feta cheese
- Southwest Twist: Include bell peppers, jalapeños, and pepper jack cheese
Frequently Asked Questions
Can I make these ahead of time?
Absolutely! These mini frittatas are perfect for meal prep. Bake them on Sunday and enjoy throughout the week. Store in an airtight container in the refrigerator.
Can I freeze mini frittatas?
Yes! Once completely cooled, place them in a freezer-safe container with parchment paper between layers. They’ll keep for up to 3 months.
What can I substitute for almond milk?
Regular dairy milk, oat milk, or any milk alternative works perfectly. You can even use heavy cream for a richer texture.
How do I prevent sticking?
Use cupcake liners or thoroughly grease your muffin pan. Silicone muffin pans also work wonderfully and nothing sticks to them.
Can I use egg whites only?
Yes! For a lighter version, use 6-7 egg whites instead of 4 whole eggs. This creates an excellent egg white frittata recipe variation.
What’s the best way to reheat them?
Microwave for 30-45 seconds or warm in a 300°F oven for 10 minutes. Avoid overheating to prevent them from becoming rubbery.
Serving Suggestions
These mini frittatas are incredibly versatile and can be served in numerous ways:
- Breakfast platter with fresh fruit and whole grain toast
- Brunch buffet alongside pastries and coffee
- Lunch box addition with vegetables and hummus
- Appetizer for dinner parties
- Post-workout protein snack
- Egg dishes for dinner with a side salad
Storage and Make-Ahead Tips
Proper storage ensures your frittatas stay fresh and delicious. Once cooled completely, transfer them to an airtight container. Place parchment paper between layers if stacking. Refrigerate for up to 5 days or freeze for up to 3 months.
For freezing, wrap individual frittatas in plastic wrap, then place in a freezer bag. This allows you to grab just what you need for a quick breakfast.
Why This Recipe Works
The secret to these perfect mini frittatas lies in the balance of ingredients and the cooking method. Sautéing the vegetables first removes excess moisture and intensifies their flavor. The combination of whole eggs and a splash of milk creates a creamy, custard-like texture that’s neither too dense nor too fluffy.
Baking at 350°F ensures gentle, even cooking that prevents the edges from overcooking while the center finishes. The result is a tender, flavorful bite every time.
Ready to transform your breakfast routine? These Cheese and Spinach Mini Frittatas are about to become your new favorite make-ahead meal. They’re proof that healthy eating doesn’t have to be complicated or time-consuming.
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PrintEasy Cheese & Spinach Mini Frittatas (20-Min Breakfast Bites)
These Mini Cheese and Spinach Frittatas are perfect bite-sized breakfast portions packed with protein, vegetables, and cheese. Ready in just 20 minutes, they’re ideal for meal prep and can be stored for up to 5 days.
- Prep Time: 10
- Cook Time: 20
- Total Time: 30
- Yield: 24 mini frittatas
- Category: Breakfast
- Method: Baking
- Cuisine: American
Ingredients
2 Tablespoons olive oil
⅓ cup finely chopped onion
½ cup chopped spinach
4 large eggs
2 tablespoons almond milk
½ cup shredded cheddar cheese
2 Tablespoons freshly chopped chives
1 teaspoon dried thyme
½ teaspoon kosher salt
¼ teaspoon ground black pepper
Instructions
1. Preheat oven to 350°F degrees.
2. Prepare a mini muffin pan with cooking spray or line with mini cupcake liners; set aside.
3. Heat olive oil in a large skillet over medium-high heat.
4. Add onions and sauté for about 2 minutes, until onions are slightly softened and start becoming translucent in color.
5. Add spinach and sauté for one minute. Remove onions and spinach from heat and let cool.
6. In a large bowl, whisk together eggs, almond milk, cheese, chives, thyme, salt and pepper. Add in the onions and spinach and whisk until ingredients are well blended.
7. Pour or spoon the egg mixture into each open mini muffin tin.
8. Bake at 350°F degrees for 18-20 minutes, just until the center of the frittatas are set and no longer jiggly.
Notes
Store in an airtight container in the refrigerator for up to 5 days.
Freeze for up to 3 months – wrap individually for easy grab-and-go.
Room temperature eggs mix better and cook more evenly.
Don’t overfill the muffin cups – leave room for puffing.
Customize with your favorite vegetables, cheeses, or add-ins.
Reheat in microwave for 30-45 seconds or in a 300°F oven for 10 minutes.