Boil pasta in well salted water to package instructions.
Spin sour cream, cottage cheese, eggs, salt, thyme, pepper, and gruyere in a food processor until cheeses are broken down and mixture is well combined. It will be quite loose.
Melt butter in a fry pan over medium heat. +
Add onions, garlic, and a pinch of salt.
Stir and sweat the onions for 5-8 minutes.
Onions should soften, but not take on color.
Transfer onions to a bowl.
Add noodles to the onion bowl along with the sour cream/egg custard. Stir to combine
Load into a well buttered 9”x 13” baking dish.
Top evenly with buttered bread crumbs then bake at 375F for 50-60min.
Allow to set before serving.