Beef Quesadillas with Salsa

From Taste of Home's Simple & Delicious May/June 2007

3/4 lb boneless beef sirloin steak, cut into thin strips
1/8 tsp salt
1/8 tsp pepper
2-3 Tbsp olive oil, divided
1 1/2 C (6oz) shredded pepper Jack cheese
4 flour tortillas (1o")

Salsa:
4 medium tomatoes, chopped
1 1/2 C cubed fresh pineapple
1/2 C chopped onion
1/4 C minced fresh cilantro
2 Tbsp lime juice
1 Tbsp olive oil
1/2 tsp salt
1/4 tsp crushed red pepper flakes

Sprinkle steak with salt and pepper. In a large skillet, saute steak in 1 tablespoon oil until no longer pink.
Sprinkle 1/4 cup cheese over one side of each tortilla; top with 1/3 cup beef and remaining cheese. Fold tortillas over. in another large skillet, cook two quesadillas in 1 tablespoon oil over medium heat for 1-2 minutes on each side or until cheese is melted. Repeat with remaining quesadillas and oil. Cut into wedges.
In a large bowl, combine the salsa ingredients; serve with quesadillas. Cover and refrigerate remaining salsa.