Pulled Pork Torta

Name: Pulled Pork Torta
Ingredients: 1-½ tsp. ancho chili powder or chili powder; 1-½ tsp. garlic powder; 2-½ tsp. cumin, divided; 1-½ tsp. salt; 1 tsp. smoked paprika; ¾ tsp. black pepper; 1 pork shoulder (2-½ pound boneless or 3-½ pound bone-in); 2 tbsp. oil, divided; 1 cup chicken broth or beer; 1 small onion, chopped; 1 serrano or jalapeño pepper, chopped; 2 cloves garlic, minced; 2 tbsp. red wine vinegar; 1 can (14.5 oz.) fire-roasted tomatoes; 8 sandwich buns, split, toasted; 4 Borden® Cheese Quesadilla Slices; 2 cups shredded lettuce; 3 medium tomatoes, cut into 16 slices