Appalachian cooking with Brenda ' John Wayne casserole

Hello' brenda makes a casserole called a John wayn casserole for the first time' it is good a easy to make' Brenda said you should take the onious mixture cut up smaller and the peppers strips in half' the biscuit base turn out harder so she thinks use a better grade of hameburger that mite not needs to be drained ? any suggeations ?? Thank you all for watching.