Add garlic and shrimp, and cook for 1-2 minutes per side..
Heat oil in a nonstick skillet.
Add vegetables and sauce; cook for an additional 5 minutes; remove to a bowl.
Spray the skillet with cooking spray, place tortilla in pan, and top half with shrimp mixture and cheese.
Fold tortilla in half and cook for 2 minutes per side, pressing down with a spatula until cheese melts.
Serve topped with salsa and yogurt.