Bring a large pot of lightly-salted water to a boil. Add pasta and cook until al dente, 8 to 10 minutes; drain well.
Cook the bacon in a frypan over medium-high heat until crisp; drain, crumble and set aside.
Place the drained noodles in a large baking dish. Stir the sour cream into the noodles. Spoon the cottage cheese evenly over the top of the noodle mixture. Sprinkle the crumbled bacon over the top; season with salt.
Bake in preheated oven until the cottage cheese softens, 3 to 5 minutes.