Empanadazo Peruvian Style Giant Empanada

Name: Empanadazo (Peruvian-Style Giant Empanada)
Ingredients: 1 tablespoon olive oil; 1 bay leaf; 1/2 pound ground beef (80% lean); 1/2 pound onions, diced (any type of onion will do); 2 garlic cloves, minced; 1/4 teaspoon ground cumin; 1/2 teaspoon dried oregano; 1 beef bouillon cube (optional); Salt and pepper to taste; 1 frozen pie crust; 1 egg, beaten; Powdered sugar, for dusting; Lime wedges, for serving