Preheat the oven to 350°F (175°C).
In a large bowl, combine the ground beef, crushed Ritz Crackers, Lipton onion soup mix, eggs, ketchup, and barbecue sauce. Mix until well combined.
In a separate pot, cook the macaroni noodles according to the package instructions. Drain and set aside.
In a saucepan, heat the milk and stir in the cooked macaroni until well mixed.
In a greased casserole dish, layer half of the meat mixture, followed by the macaroni mixture, and then top with the remaining meat mixture.
Bake in the preheated oven for 1 hour.
Let cool for a few minutes before serving.