Cheesy Spinach Stuffed Peppers

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.

• 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