Prep beef similar to cheesesteak / Dream sandwiches
Heat the butter in a large skillet over medium heat. Add the onion and garlic and cook for 1 minute. Add the ground beef and sprinkle with salt and pepper. Cook the meat, crumbling as you go, until cooked through, about 5 minutes.
Add the noodles and broth. Give a big stir and bring to a simmer. Cover and allow everything to simmer, stirring occasionally, until the pasta is al dente and the sauce has thickened, about 12 minutes. Stir in the sour cream and cook for 1 additional minute or until the pasta is tender.