How to handle not-so-great food?

My mom makes not-so-great food sometimes. Sometimes its just disgusting health food, but sometimes its just because she doesnt cook that great. There are a few meals that she makes pretty good, and i gobble them up real fast and ask for more. But when she makes not-so-great meals, it seems like she wants me to eat them the same way i do good meals. I usually just talk a lot to cover up that im not eating, but shes caughten on to me. how do i respond to these meals? please help!!