I have done several shops for them. At the beginning, I took the 50% reimbursement restaurants, just to get my foot in the door (plus we happen to like that chain). Now, I am taking the one that either pay or reimburse fully. Tonight my husband and I are eating at a restaurant with an $80 reimbursement. I looked at the menu and found that we can order food we like and stay within that amount. We may spend a bit more, but it will still be cheaper for us than a fast food meal.
I don't know where you are located, but I have done other types of shops (not restaurants) for them where I am paid a fee. Just keep checking and applying.