Recipes: Creamy beef and shells

Preparation:    Preparation time: 40 mins Cooking time: 30 mins Serving: 4-6 Ingredients: 1 tablespoon olive oil 1 pound lean ground beef 1 teaspoon kosher salt 1 teaspoon garlic powder 1 teaspoon onion power 2 cups beef broth 8 ounces dried pasta shells 1 (15-ounce) can tomato sauce 8 ounces sharp white cheddar...