01 -
In a bowl, mix chili powder, cumin, oregano, garlic powder, onion powder, salt, pepper, and olive oil. Toss the shrimp in the mixture and set aside.
02 -
Combine mashed avocados with cilantro, garlic, lime juice, salt, and pepper in a bowl. Mix well.
03 -
In another bowl, mix diced tomatoes, garlic, jalapeño, red onion, and cilantro. Set aside.
04 -
Heat a grill pan or skillet over medium heat and coat with cooking spray. Grill shrimp 1–2 minutes per side, or until opaque.
05 -
Place tostada shells on plates. Top each with guacamole, grilled shrimp, and a generous spoonful of pico de gallo. Serve immediately.