Ingredients
- 2 tablespoons oil
- 1/3 cup minced onion
- 1 pound mixed cooking greens, such as kale, mustard and collard, ribs removed and leaves roughly chopped
- 1 teaspoon salt
- 1/2 teaspoon crushed red chile flakes
- 2 teaspoons minced garlic
- 1 cup diced feta cheese
- 12 corn tortillas
- 1/4 pound low-moisture mozzarella, cut in small dice
Directions
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In large (12-inch) skillet, heat 1 tablespoon oil over medium heat until shimmering. Add onion and cook, stirring occasionally, until soft and beginning to color, 3-5 minutes. Add rinsed greens with any water clinging to leaves, along with salt, chile flakes, and garlic. Cook, stirring frequently, until greens are tender, 15-30 minutes, depending on type used. Add water as necessary to keep skillet from drying out.
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When greens are cooked, stir in feta and remove from heat. Season to taste with salt.
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In large, heavy skillet or griddle, heat remaining oil over medium-high heat until shimming, using a spatula to spread evenly on surface. Add as many tortillas as will fit and cook on one side until softened, 2-3 minutes. Flip, then spoon 2-3 tablespoons of filling onto tortillas, along with some mozzarella. Use a spatula to fold tortillas in half.
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Cook until tortillas are golden and cheese is melted, 2-3 minutes per side. If necessary, keep cooked quesadillas in warm oven until all are cooked. Repeat with remaining tortillas and filling. Serve immediately.