Ground Beef Shell Tacos

Easy Meal Idea!🤓 Ingredients: • 1 lb ground beef • ½ white onion, diced (reserve some for garnish) • 1½ teaspoons minced garlic (or as much desired). • 3 tbsp taco seasoning • 1 tsp chili powder (adjust to taste) • 1 tsp cayenne pepper (adjust to taste) • 1 cup beef broth • thick cut shr