Add the shrimp to the pan, cooking them with the vegetables for another 2 minutes. Mix in some tomato paste to thicken the sauce.
Stir in the chopped basil, dill, and one clove of minced garlic. Cook for another minute, then add the remaining garlic. Turn off the heat.
Spread the shrimp filling over half of a tortilla. Top with avocado slices and shredded cheese.
Fold the tortilla in half and toast it in a greased nonstick pan until golden brown on both sides, flipping carefully.
Slice the quesadilla and serve warm.
Notes
Serve with a light salad or guacamole and a dipping sauce like sour cream or salsa. Leftover quesadillas can be stored in an airtight container in the refrigerator for up to 3 days.