Beef Empanadas Recipe

Name: Beef Empanadas Recipe
Ingredients: 1 pound ground beef (85% lean recommended); 1 medium onion, finely chopped; 1 red bell pepper, diced; 2 cloves garlic, minced; ¼ cup tomato paste; 1 teaspoon ground cumin; 1 teaspoon smoked paprika; ½ teaspoon chili powder; ½ teaspoon dried oregano; Salt and pepper, to taste; ½ cup green olives, sliced (optional); 2 hard-boiled eggs, chopped (optional); ¼ cup fresh parsley or cilantro, chopped; For Assembly:; 1 egg (for egg wash); Sesame seeds (optional, for garnish)