Box of Lasagna noodles cost .96$ and I usually get 2 or 3 lasagna's out of them. So I figure let than .50$ in noodles. 5 lbs. of hamburger at our grocery is about 5.00$ so $1 dollar for hamburger. Spaghetti Sauce is $1. 
Mexican Cheese at our grocery is 1.79. Sometimes you can catch it on sale and is it buy one get one free. And cottage cheese is .69$. So total for this dish is for under $5. And I feed 7 or more people with this dish and 
still have leftovers for days for lunch. Not to mention my kids love inviting their friends over to dinner because this is one of their favorite dishes.

 

Brown meat, add spaghetti sauce. Lay 4 (uncooked) noodles in bottom of glass casserole dish. Layer one layer of spaghetti sauce, meat mixture using 1/2.  Then 1/2 package of Mexican cheese. Top with half of container of cottage cheese. Add second layer of uncooked noodles. Layer of spaghetti sauce, meat mixture (using last of mixture). Remainder of Mexican cheese and cottage cheese. Top with aluminum foil. Cook at 350 for 1 hour when you remove foil do so carefully some of cheese will be stuck. Allow to cool about 10 minutes and serve is good with garlic bread but not necessary.