There is precious little between Cambria and Big Sur (the town). Plan accordingly. Either take food, or eat somewhere around SLO or Morro Bay, and plan your day so you don't need further food until Big Sur. Similarly,
plan your gas! There's a gas station at the little town of Gorda, but it's famous for gas prices that are at least $1 per gallon higher than anywhere else. It's there to catch the unprepared, which included my sister and BIL one year
Once you get to Big Sur, there are a bunch of choices, including Nepenthe, River Inn (both covered above), Ventana, and Post Ranch Inn. Post Ranch has views from indoors (through picture windows) that are as good as those from Nepenthe's. It also has prices that are even richer than Nepenthe's. It's a high-end place.
HTH,
Bob