Cook macaroni until al dente, then drain.
Brown ground beef in a skillet and drain excess grease.
Sauté diced onion and garlic, then stir in ranch seasoning.
Add broth, Worcestershire, and mustard; simmer until thickened.
In another pan, make a roux with butter and flour; whisk in milk.
Stir in cheeses, extra milk, and paprika until smooth.
Mix macaroni into cheese sauce until fully coated.
Layer macaroni, beef, and more macaroni in a greased baking dish.
Top with panko breadcrumbs mixed with melted butter.
Bake at 375°F for 18–20 minutes, garnish, and serve warm.