It's dinner time!

Ingredients

• 2 tablespoons butter
• ½ cup all-purpose flour
• ½ cup milk, plus more if needed
• 1 (10.75 ounce) can condensed tomato soup
• ¾ cup cubed Cheddar cheese
• ½ teaspoon dry mustard powder
• 1 dash Worcestershire sauce
• 1 pinch ground paprika