Grilled Steak Lettuce Tacos

Name: Grilled Steak Lettuce Tacos
Prep time: 20 min
Cook time: 10 min
Total time: 30 min
Cuisine: American
Ingredients: 4 oz 1 small haas avocado; 1/4 cup diced tomato; 2 tablespoons diced red onion; 2 teaspoons lime juice; 2 teaspoons chopped cilantro; 1/2 teaspoon kosher salt; fresh black pepper (to taste); 1/2 cup diced tomato; 1/4 cup chopped onion; 1 tbsp minced jalapeno; 1 teaspoon lime juice; 1/4 tsp kosher salt; 1 lb thin sirloin steaks; 1 tsp kosher salt; 1 tsp ground cumin; 1/2 tsp garlic powder; 1/8 teaspoon dried oregano; pinch fresh ground pepper; 8 lettuce shells from 1 head