Gather all your ingredients: shrimp, tostada shells, avocado, lime, cilantro, and desired toppings. Rinse the shrimp under cold water and pat dry.

Toss shrimp with olive oil, salt, pepper, and lime juice. Let marinate for 15 minutes.

Heat a skillet over medium-high heat, add olive oil, and cook marinated shrimp for 2-3 minutes on each side until pink and opaque.

In another skillet, heat oil and fry the tostada shells until crisp.