Recipe

Cheesy Spinach & Caramelized Onion Quesadilla

Updated on 3 min read
523020197 1114668237172487 7387246714276501803 n Recipe

Quick Description

Golden crisp quesadillas stuffed with gooey cheese, caramelized onions, and wilted spinach. A delicious vegetarian meal or snack that’s both comforting and nutrient-packed.

Servings & Timing

  • Servings: 2–3 quesadillas (makes 6 wedges)
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Total Time: 30 minutes

Ingredients List

For the Caramelized Onions

  • 2 medium onions (thinly sliced)
  • 1 tbsp olive oil
  • 1 tsp butter
  • ½ tsp salt
  • 1 tsp balsamic vinegar (optional, for depth)

For the Quesadillas

  • 4 medium flour tortillas (whole wheat or spinach wraps also work)
  • 1 ½ cups shredded cheese (mozzarella, cheddar, Monterey Jack, or a blend)
  • 2 cups fresh spinach leaves (washed, stems removed)
  • 1 clove garlic (minced)
  • ½ tsp chili flakes (optional, for heat)
  • 1 tbsp olive oil or butter (for crisping tortillas)

Instructions

  1. Caramelize Onions:
    • Heat olive oil and butter in a skillet over medium heat.
    • Add sliced onions and salt. Cook slowly, stirring often, for 12–15 minutes until golden brown.
    • Optional: Stir in balsamic vinegar at the end for extra flavor. Remove from skillet and set aside.
  2. Sauté Spinach:
    • In the same pan, add a drizzle of olive oil and garlic.
    • Toss in spinach and cook for 2–3 minutes until just wilted. Remove from heat.
  3. Assemble Quesadilla:
    • Place one tortilla on a flat surface. Sprinkle ¼ of the cheese evenly.
    • Add caramelized onions and spinach. Top with more cheese, then cover with another tortilla.
  4. Cook Quesadilla:
    • Heat a skillet with a little olive oil or butter.
    • Place quesadilla in skillet, cook 3–4 minutes per side until tortilla is golden and crispy and cheese is melted.
  5. Cut & Serve:
    • Slice into wedges. Serve hot with salsa, sour cream, or a yogurt dip.

Additional Notes

  • The slow caramelization of onions is the secret to deep, sweet flavor.
  • For extra crispiness, brush tortillas lightly with oil before cooking.

Dietary Info

  • Vegetarian
  • High-Calcium (cheese + spinach)
  • Can Be High-Protein: Use protein tortillas and extra cheese or chicken filling.

Ingredient Details & Substitutions

  • Cheese: Try goat cheese or brie for a gourmet variation.
  • Spinach: Kale or arugula can be used instead.
  • Onions: Red onions give a sweeter flavor; yellow onions are classic.
  • Tortillas: Gluten-free tortillas work for GF diets.

Recipe Variations & Serving Suggestions

  • High-Protein Version: Add cooked shredded chicken or turkey.
  • Mushroom Lovers: Add sautéed mushrooms with the spinach.
  • Spicy Kick: Add jalapeños or chipotle peppers inside.
  • Serving Idea: Pair with a tomato soup, guacamole, or fresh salad.

Storage & Make-Ahead

  • Best eaten fresh, but leftovers can be refrigerated up to 2 days.
  • Reheat in skillet for crispiness (avoid microwave to prevent soggy tortillas).
  • Caramelized onions can be made ahead and stored for up to 5 days.

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