1. Cook the Pasta

• Bring a large pot of salted water to a boil.
• Cook macaroni until just al dente (it will cook more in the oven).
• Drain and set aside.

2. Cook the Bacon and Beef

• In a large skillet, cook chopped bacon until crispy.
• Remove bacon with a slotted spoon and set aside, leaving bacon fat in the skillet.
• Add diced onion and ground beef to the skillet.
• Cook until beef is browned and onion is softened. Drain excess fat if needed.

3. Make the Cheese Sauce

• In a medium saucepan, heat olive oil or butter over medium heat.
• Whisk in flour to make a roux. Cook for 1 minute.
• Gradually whisk in milk and cream.
• Stir constantly until the sauce thickens, about 3–4 minutes.
• Add cheddar, mozzarella, and parmesan cheese.
• Stir until melted and creamy.
• Stir in mustard, ketchup, Worcestershire sauce, salt, and pepper.

4. Combine and Assemble

• Preheat your oven to 375°F (190°C).
• In a large mixing bowl, combine cooked pasta, beef mixture, bacon, and cheese sauce.
• Stir gently to coat everything evenly.
• Pour the mixture into a greased 9×13-inch baking dish.
• Sprinkle extra shredded cheese and cooked bacon on top.

5. Bake

• Bake uncovered for 20–25 minutes, or until the top is golden and bubbly.

6. Garnish and Serve

• Sprinkle with optional toppings like pickles, tomatoes, or green onions for extra cheeseburger vibes.
• Serve hot and enjoy!