Unless you have a car, if you're at Crystal Paradise or most any other lodge, you're not going to have the option to go into town for meals. There are no regular buses running on the Cristo Rey road and it's a l-o-n-g walk back into town. Guess you could stock up on groceries in San Ignacio and picnic for most meals.
If you stay at Mida's or one of the hotels in town, you will be able to go out for meals. You can eat pretty cheaply in town -- there's a place across from Eva's that has good tacos and such for not much money.
Clarissa Falls has a good little restaurant -- small tacos are like US 25 cents.
--Lan Sluder