Greek Stuffed Chicken Breasts

Ingredients (12)

• + 1 lemon add to pantry
• + 2 tablespoons extra-virgin olive oil add to pantry
• + ⅓ cup finely chopped onion add to pantry
• ✓ 1 clove garlic, minced
• + ⅓ cup chopped cooked spinach add to pantry
• + ⅓ cup crumbled feta cheese add to pantry
• + 3 tablespoons finely chopped Kalamata olives add to pantry
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• ✓ 2 boneless, skinless chicken breasts
• + 2 teaspoons all-purpose flour, or as needed add to pantry
• + toothpicks add to pantry