Cheesy Spinach Stuffed Peppers

Name: Cheesy Spinach Stuffed Peppers
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Italian
Ingredients: 4 red bell peppers, halved and seeded; 2 tablespoons olive oil; 2 small yellow onions or 1 large, diced; 4 garlic cloves, minced; 4 cups fresh spinach or 14 ounces frozen spinach; 1 teaspoon sea salt; ½ teaspoon black pepper; ⅛ teaspoon ground nutmeg; 2 ½ cups shredded mozzarella cheese, divided; 12 ounces ricotta cheese

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These Cheesy Spinach Stuffed Peppers are the perfect easy weeknight meal. Tender, roasted peppers, stuffed with a rich, creamy spinach filling, and topped with melty cheese. They are low carb, gluten free, and vegetarian.

red bell peppers stuffed with cheese and spinach, served on a white plate

Table of Contents show

How to make Cheesy Spinach Stuffed Peppers

ingredients laid out - peppers, spinach onion, garlic, cheese, olive oil, nutmeg

Ingredient Notes

Bell peppers - You can make these vegetarian stuffed peppers with any color bell pepper you prefer - red, yellow, green or orange. They are also delicious made with poblano peppers. (Try these Philly Cheesesteak Stuffed Peppers)
Spinach: I used fresh baby spinach, but you can also use frozen spinach. I give the amounts in the recipe card below. Alternatively, you can switch things up entirely and make these keto stuffed peppers using kale, cabbage, or even shaved Brussels sprouts. Better yet, use a mixture of all of those combined. (Try this Spinach and Artichoke Dip)
Onions - For this recipe I used yellow onions. You can also use white onions, red onions, or even shallots.
Mozzarella cheese: These Cheesy Spinach Stuffed Peppers are also delicious with sharp cheddar cheese, gruyere, parmesan, havarti, or any combination of these.
Ricotta cheese: The ricotta gives the filling a smooth creaminess. You can also use cream cheese or mascarpone.

How to make Cheesy Spinach Stuffed Peppers

step by step photos for how to make vegetarian stuffed peppers

Step by Step Instructions

STEP 1: Preheat the oven to 375°F. Place the peppers in a baking dish. Bake for 10 minutes.

STEP 2: While the peppers are in the oven, heat the olive oil in a large skillet over medium heat. Add the onion and garlic and cook until the onion is translucent and the garlic is fragrant.

STEP 3: Add the spinach, salt, pepper, and nutmeg.

STEP 4: Cook until the spinach is wilted.

STEP 5: Reduce the heat to low and mix in 1 ½ cups of the mozzarella cheese and the ricotta cheese. Cook, stirring constantly, until the cheese is melted and creamy. Taste, and add more salt and pepper, if desired.

STEP 6: Divide the mixture evenly between all of the bell peppers.

STEP 7: Top with remaining mozzarella cheese. Return to the oven, and bake for an additional 10 minutes or until the cheese is brown and bubbly, and the edges of the peppers are slightly charred.

baked red bell peppers, stuffed with cheese, spinach, onion, and garlic

Recipe Tips and Variations

Storage: Store leftovers in the refrigerator for up to 5 days. (These are my favorite storage and meal prep containers)
Reheating: I recommend reheating these cheesy spinach stuffed peppers in the oven or the air-fryer. Heat at 275°F until warmed through. (This is the air fryer that I have and love. I use it every day.)
Make ahead: You can make the filling ahead of time and then prepare the peppers when you are ready to eat. (Try these Sloppy Joe Stuffed Peppers)
Add a protein: As the recipe is written, these are the perfect vegetarian stuffed peppers, but the cheesy spinach filling is also delicious with shredded chicken, shrimp, crab, or even sausage added.
Add more veggies: These stuffed peppers are a great way to use up any extra vegetables you have on hand. Some of my favorite vegetables to add are mushrooms, artichokes, kale, or carrots.
Make stuffed mushrooms: This cheesy spinach feeling is also delicious in stuffed mushrooms. (Try these Sausage Stuffed Mushrooms)

Frequently Asked Questions

Can I use a different color bell pepper?

Yes, these stuffed peppers are delicious with yellow, red, orange, and green bell peppers. They are also delicious made with poblanos.

Can stuffed peppers be made in an air-fryer?

Yes, to make these in the air fryer, pre-cook the bell peppers in an air-fryer for 5 to 8 minutes at 375°F. Then cook the filling as per the directions. Stuff the peppers and pop them back in the air fryer for 10 more minutes.

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