Creamy Beef and Shells

Name: Creamy Beef and Shells
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: American
Ingredients: 1 lb. ground beef (85% lean); Salt/Pepper; 1 small diced yellow onion (can sub 1 tsp onion powder); 3 cloves minced garlic (can sub ½ tsp garlic powder); 1 teaspoon hot sauce; 1 Tablespoon Worcestershire Sauce; 1 teaspoon Italian seasoning; ½ teaspoon mustard powder; 1 pinch red pepper flakes (optional); 3 Tablespoons flour (optional-helps thicken the sauce); 1 cup beef broth; 16 oz. tomato sauce; 1 Tablespoon tomato paste; 1 Tablespoon cream cheese (softened); ½ cups half and half; 1 ½ cups shredded cheddar cheese; ½ pound medium shell pasta; Fresh parsley (to garnish); Grated Parmesan cheese (for serving.)