Taco Bell here is $15-$20 for their combos (drink, "main item", smaller item (taco, soft taco, basic burrito), and side (fries, chips). Even their $7 "value box" that's advertised nationally is $12 here.
Only actual place to eat here that's still cheap is Costco. They still have the $1.50 hot dog combo, $2 slices of pizza, $2 ice cream sundaes, and $4 chicken bake. The problem is that everyone knows it's the only cheap place to eat, so it's always crowded - usually about a 10-minute wait to get to the kiosk and another 20–30 minutes to get your food. My local warehouse has now converted about 1/4 of their floor space just to having tables for the food court, and still it's nearly impossible to find a place to sit unless you go either first thing in the morning or 30 minutes before close. So, the food is cheap, but it's usually not worth the time and effort.