yes. Not the best value usually, but if you're going to have left-over meals, go for it. You might ask what you can get,though, because you may be able to get other items like a breakfast sandwich or even a regular sandwich if they have the pre-made ones out already (like a ham & cheese)
We did use a counter service credit for a non-entree item a couple of weekends ago...hubby LOVES biscuits & gravy, which POFQ said he could use a snack credit to get that dish (cash cost is only like $3.50.) But he was out of snack credits, and yet we were going to be losing a counter service on because we were leaving. So he asked if he could use the biscuits/gravy as his entree & get a bottled drink...cashier said sure thing.