1. Preheat grill or grill pan to medium-high heat.
2. Cook potatoes and onion until tender.
3. Add spinach and garlic; cook until wilted.
4. Place mixture on half of each tortilla, top with cheese.
5. Fold tortillas in half; grill until crispy and melted.

Tips and Variations:

– Use different types of cheese or add beans for extra protein.
– Add diced bell peppers or mushrooms for extra flavor.
– Serve with salsa, sour cream, or guacamole for added flavor.
– Perfect for a quick and easy dinner or lunch!