These Cheesy Spinach Mini Frittatas are quite possibly the easiest, tastiest make-ahead brunch recipe!

I've always loved brunch, long before brunching became an adverb.
Brunch and Mother's Day have almost become synonymous. I like the idea of a Mother's Day wine tasting, or a Mother's Day hike. Sometimes those Mother's Day brunch reservations can fill up quickly, and Mother's Day is definitely not a day I'd want to spend waiting an hour to get seated for brunch.
No brunch is worth an hour's wait. Even here in Portland, Brunch Town USA.
A nice leisurely brunch at home, on the other hand, sounds divine. So today, I'm sharing one of my favorite brunch items to make. If you ever come over to my house for a breakfast or brunch gathering, chances are fairly high that you'll be served my Go To, easy make-ahead Cheesy Spinach Mini Frittatas.
Cheesy Spinach Mini Frittatas

I've been making different variations of these mini frittatas since I was in my early twenties. While I love making full size quiches - like this bacon mushroom quiche - these minis are sometimes just what you need.
One of the very first versions I made was a ham and cheese frittata for a girls' brunch, and it was such a hit that I kept making it.

These cheesy spinach mini frittatas are super easy to make, and can be made in 30 minutes or less. I love serving these as mini frittatas because they're easy for portion control at parties, plus they are easier to freeze and reheat single portions. However, you could also make one big 9" frittata with this recipe if you wish.

Frittata Mix-In Ideas
I also love these mini frittatas because they are so easy to customize with different ingredients. Here are some of my favorite mix-ins that I like to use:
- diced ham
- sliced mushrooms
- chopped asparagus
- sausage crumbles
- bacon bites

I've served these at girls' brunches, baby showers, wedding showers, birthdays, and more. They're such fun, delicious little golden nuggets of brunch goodness - and everyone loves them!
Whether you're a mom yourself or you are celebrating your mom this weekend, I hope you all have a lovely Mother's Day!
Cheesy Spinach Mini Frittatas Recipe

Cheesy Spinach Mini Frittatas Recipe
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
- salt & pepper to taste
Instructions
- Preheat oven to 350 degrees.
- Prepare a mini muffin pan with cooking spray; set aside.
- Heat olive oil in a large skillet over medium-high heat.
- Add onions and sauté for about 2 minutes, until onions are slightly softened and start becoming translucent in color.
- Add spinach and sauté for one minute. Remove onions and spinach from heat and let cool.
- In a large bowl, whisk together eggs, almond milk, cheese, chives, and thyme. Add in the onions and spinach and whisk until ingredients are well blended.
- Pour or spoon the egg mixture into each mini muffin tin.
- Bake at 350 degrees for 18-20 minutes, just until the center of the frittatas are set and no longer jiggly.
Notes
Nutrition information is a general estimate. Actual nutrition details may vary depending on the exact foods & brands you use to make this recipe. It does not take into account any substitutions, toppings, or optional ingredients.
What would be your favorite mix-in ingredient for these Cheesy Spinach Mini Frittatas?
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Lisa says
These are very tasty ... but how do you keep them from going flat? Mine looked more like mini pancakes vs muffins. Still delicious but curious if there is a trick to keep them from going flat?
Marlynn Jayme Schotland says
Hi Lisa! Frittatas are always going to deflat a little bit when you take them out of the oven, but mine have never turned out flat before. Since every oven heats up a little differently, if you find that yours come out flat, try taking them out of the oven a minute or two earlier (make sure the eggs aren't runny!), then allow them to rest at room temperature before removing them from the pan. If you try that next time let me know how it goes!
Terri says
Can these be frozen and reheated later? If so, do you let them thaw and then reheat or heat frozen? I'm thinking this is a great option for my hubby to take to work for breakfast. Thank you!
Marlynn Jayme Schotland says
Terri - yes, these can be cooked, cooled to room temp, frozen, and then heated up before serving. I usually take them out of the freezer, preheat the oven, and then by the time the oven is preheated, they are ready to be heated up. If you're reheating in the microwave, I'd let them thaw out a bit from frozen before microwaving them.
Sheena says
These are delicious!! And super easy to make. Made them for Christmas Brunch and they were a hit. Only problem, there weren’t enough. Double the recipe for happy customers!
Sandy Viveiros says
Making these Mini Cheesy Spinach Frittatas for a Baby Shower Brunch in a couple weeks. Would like to make ahead and freeze, if I do that do they need to be thawed before reheating or can they go from freezer to oven, and if so, how long?
Thank you in advance!
Melissa says
Do you have to use almond milk?