Preheat grill to high.*
Combine ketchup and 1 tablespoon TABASCO® Chipotle Sauce in small bowl. Set aside.
Heat oil in 12-inch skillet over medium-high heat. Add shrimp; cook until lightly browned on all sides, stirring frequently. Stir in remaining tablespoon of TABASCO® Chipotle Sauce; mix well.
Place 4 tortillas on work surface. Spread each with 1 tablespoon chipotle mixture. (Reserve remaining mixture to serve with quesadillas.) Sprinkle each with 2 tablespoons cheese. Top each with red onion, spinach and cooked shrimp; sprinkle with remaining cheese. Top with remaining tortillas.
Carefully place quesadillas on grill. Cook 4 minutes per side, turning carefully. Remove from heat. Cut each quesadilla into six wedges.
Serve immediately with remaining chipotle mixture.
*To cook indoors: Preheat oven to 450º F. Place quesadillas on cookie sheet. Cook about 8 minutes, until cheese is melted and lightly browned.
*To grill shrimp: Preheat grill. Combine oil and 1 tablespoon TABASCO® Chipotle Sauce. Skewer shrimp onto 4 large skewers. Brush with chipotle mixture; grill 5 minutes, turning occasionally.
Makes 4 servings.
Nutritional information per serving: 490 Calories, 35 g protein, 42 g carbohydrate, 19 g fat, 200 mg cholesterol, 1283 mg sodium