01 -
In a medium bowl, combine chili powder, cumin, oregano, garlic powder, onion powder, salt, pepper, and olive oil. Toss the shrimp in this spice mixture and set aside.
02 -
In another bowl, mix mashed avocados, minced cilantro, garlic, lime juice, salt, and pepper. Set aside.
03 -
In a separate bowl, combine diced tomatoes, garlic, jalapeño, red onion, and cilantro. Set aside.
04 -
Preheat a grill pan or skillet over medium heat and spray with cooking spray. Add the marinated shrimp and cook until opaque, about 1–2 minutes per side.
05 -
Divide the tostada shells among plates. Top each with a layer of guacamole, followed by grilled shrimp and a spoonful of pico de gallo.