Preheat oven to 350. Cook noodles in boiling water until al dente, drain and put in 9x13 pan, add butter and toss while hot. In a small bowl, beat eggs, add sour cream and cottage cheese and and stir until mixed. Pour over noodles and toss to combine.
Bake for 50 minutes at 350 degrees uncovered. It should be set and firm to the touch in the center and light brown on the noodle tips sticking out.
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