Opposite the terminal you will see Walmart and Sam's. To the left of that there recently openede a new Mall with the shop Liverpool a.o. in it. There you will find a Chili's.
But any other more interesting restaurants, take a yellow cab to Old Town. Plenty of nice restaurants along the Malecon (La Chatta and others) and on Playa los Muertes (La Palapa, langoustines etc.) .
Yellow cab from Walmart is much cheaper then the white/yesllow cabs from the port. Make a fix rate. will be just a few US$.
Or take one of the citybuses (direction Centro and Olas Altas) for 5.50 each. (Back the bus into direction Walmart).