This is very nice! I made all of the sauce but only cooked half the pasta to make an 8x8 casserole. I am going to freeze the other half of the sauce, then when I'm ready for it will thaw fully and add freshly cooked pasta before baking. I left out the celery and used red pepper. Also used homemade Taco Seasoning. I accidentally added the cheese at the beginning and by the time I realized, it was too late, so I let it go for 25 minutes then covered loosely with foil so it wouldn't get too browned. Thanks for the recipe!