One Pot Beef Taco Pasta

Name: One Pot Beef Taco Pasta
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Cuisine: American
Ingredients: 1 Tbsp olive oil ($0.22); 1 yellow onion (diced, $0.58); 2 garlic cloves (minced, $0.16); ½ lb. ground beef ($3.61); 1 packet taco seasoning (about 1 oz., $0.47*); 15 oz. can diced tomatoes (with juices, $0.96); 4 oz. can diced green chiles (with juices, $0.88); ½ lb. small pasta shells (uncooked, $0.37); 2 cups beef broth ($0.26**); 1 cup cheddar cheese (shredded, $0.93); 2 green onions (sliced, $0.20)