Cheeseburger Casserole

INGREDIENTS

2 cups

uncooked shell pasta, cooked according to directions

1 lb

ground beef (if using lean, add 2 tablespoons olive oil)

1 1/2 cups

chopped onion

2 cloves

garlic, minced

1 tbsp

flour

1/2 cup

ketchup

2 oz

cans diced tomatoes, undrained

1 tbsp

yellow mustard

1/2 tsp

black pepper

1 tsp

salt

1 tbsp

worcestershire sauce

1/2 cup

chopped dill pickles, divided

2 cups

cheddar cheese