Preheat to 350*. Prepare macaroni according to package directions. In large skillet, brown hamburger and drain. Add soup, Rotell, and cooked macaroni. Place half the mixture in a greased casserole dish. Sprinkle with half the cheese and half the onions. Layer the rest of the macaroni mixture on top of that, then the rest of the cheese. Bake at 350* for 15 minutes. Top with remaining onions and bake 5 more minutes. Enjoy!
Recipe by Reality Daydream at https://realitydaydream.com/cheesy-cruncheroni-casserole/