Chicken Gorgonzola Quesadillas
Ingredients:
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2 large skinless, boneless chicken breast halves, cut into bite-size pieces and pounded thin
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salt and ground black pepper to taste
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1 tablespoon olive oil, or as needed
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½ onion, chopped
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2 cloves garlic, minced
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2 flour tortillas, or more as desired
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1 (5 ounce) package crumbled Gorgonzola cheese
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1 cup cooked spinach