This is from none other than The Pioneer Woman. She doesn't do casserole type things very often, but when she does, they are always amazing. I really enjoyed this one. It is SO super easy and delish! I made a couple changes based on the comments she received, and I loved how it turned out.
Sour Cream Noodle Bake
adapted from The Pioneer Woman
Preheat oven to 350 degrees. Brown ground beef in a large skillet. (While browning ground beef, you can begin to boil your water for the egg noodles.) After ground beef is browned, drain fat, then add tomato sauce. 1/4 teaspoon salt and plenty of freshly ground black pepper. Stir, then simmer while you prepare the other ingredients. Cook egg noodles until al dente. Drain and set aside.
In a medium bowl, combine sour cream and cottage cheese. Add plenty of freshly ground black pepper. Now stir in your green onions and diced olives. Add to noodles and stir until noodles are coated evenly.
To assemble, add half of the noodles to a baking dish. Top with half the meat mixture, then sprinkle on half the grated cheddar. Repeat with noodles, meat, then a final layer of cheese. Bake for 20 minutes, or until all cheese is melted.