What you need:
1 pound ground beef
1 teaspoon Worcestershire sauce
1/2 teaspoon seasoned salt
1/4 teaspoon ground black pepper
1/2 cup diced red or yellow onion
1 cup beef broth
3 cups whole grain medium shells, uncooked
2 cups fresh spinach, slightly chopped
2 Tbsp. flour
1-2 Tbsp. butter or margarine, if needed
2 cups milk
2 cups shredded sharp cheddar cheese, divided
1/4 cup grated Parmesan cheese
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