- Wilt spinach with salt, pepper, and nutmeg in skillet over medium heat (3–5 mins). 
- Squeeze out moisture from spinach using towel or strainer. Chop. 
- Mix spinach with garlic powder, red pepper, oregano, and half the mozzarella. 
- On each tortilla, layer mozzarella, spinach mix, feta, and more mozzarella. Fold in half. 
- Heat oil in pan on medium-low. Cook quesadillas 3–4 mins per side until crispy and golden. 
- Slice and serve with Greek yogurt or guac.