01 -
Cook the egg noodles according to the package directions.
02 -
Heat a large skillet over medium-high heat. Add the ground beef, diced onions, and mushrooms. Cook until the beef is browned and no pink remains, then drain any excess grease.
03 -
Add the butter to the skillet. Once melted, stir in the flour and cook for 2–3 minutes, stirring frequently, to create a roux.
04 -
Pour in the beef broth, whisking until smooth. Bring the mixture to a gentle simmer and cook until it begins to thicken.
05 -
Stir in the beef paste, dehydrated onions, onion powder, garlic powder, salt, pepper, heavy cream, and Dijon mustard. Mix until everything is well combined and the sauce is smooth.
06 -
Add the cooked, drained egg noodles to the skillet and toss until evenly coated. Serve immediately.