In a large skillet, over medium high heat, brown the ground turkey, breaking up the chunks of meat as it is cooking. Add the tomato sauce, salt and pepper, to taste. Reduce heat to medium-low and simmer for 10 minutes.
Meanwhile, cook the pasta according to the instructions on the box, but cook the pasta for 1 minute less than is necessary to make it al dente. The pasta should still be slightly hard. It will finish cooking in the oven.
Combine the sour cream and cottage cheese in a large bowl. Add noodles to the sour cream mixture and stir to combine. Add the green onions and stir until well mixed.
Evenly spread half the noodle mixture over the bottom of a 9" x 13" pan. Spread half of the meat and sauce over the noodles and sprinkle with half the cheese. Repeat with the remaining noodles, meat and cheese. Bake for 20 minutes, or until the cheese has melted and dish is heated through.
Serve immediately
Recipe by The Little Chef at http://littlechefblog.com/sour-cream-noodle-bake/