The Mexican Casserole

Well, the Mexican casserole turned into the worst nightmare EVER!  What I did:
One box of Mexican Rice mix: cook according to directions on the box
1 pound of hamburger meat
1 onion diced
Cook rice mix according to the directions on the box.  Brown the ground beef with the diced onion, drain.  When rice is done, mix in the ground beef, top with about 2 cups of Mexican cheese blend, place in oven at 350 till cheese is melted. 
Pretty simple and tasty.  The problem?  The hamburger meat, the entire package was BAD!  I ended up sick for 2 days as did my husband and son. :(  We had to throw away 4 lbs of hamburger and notify the store where we bought it.  I thought I was gonna die before it was all over with. 
So, tonight, we are having.....wait for it....CHICKEN!
Baked chicken...simple.  Salt and pepper, a little bit of garlic and some onion powder and cook in a 350 oven till done. 
Good luck.