01 -
Preheat the grill to medium-high heat.
02 -
Combine shrimp with olive oil, garlic powder, chili powder, salt, and black pepper in a mixing bowl.
03 -
Thread the seasoned shrimp onto skewers, spacing evenly.
04 -
Grill the shrimp skewers for 2 to 3 minutes per side until opaque and cooked through.
05 -
Mash the avocado and blend in lime juice until smooth.
06 -
Spread the creamy avocado mixture evenly over each tostada shell.
07 -
Top each tostada with grilled shrimp from the skewers.
08 -
Sprinkle fresh cilantro over the tostadas and serve immediately.