Fremont Diner is located on Highway 121 heading towards Napa/Sonoma, from the North Bay. It used to be a place called, Babe's, which I sadly never got to go to. Babe's has been closed for some time.
The lastest incarnation, Fremont Diner, is the "child" of a chef who has his own Napa Valley catering company, Rising Sun Catering, now Caridwyn and Sons. From the outside you see bright turquoise picnic benches set in a small side patio with a white picket fence surrounding it. When you enter the swinging screen door, you feel as if you've stepped back into another time, maybe even in the deep South. There is a small refridgerator for drinks on the left, a shelf system of old wood next to it with a few items, including Fra Mani Salami, and the same on the right with some Fremont Diner paraphernalia. Your orde at the walk-up window which looks out onto the open kitchen, with an adorable FREMONT silver letter set above the walkout. The entire ambiance is country comfortable, with a city edge. The counter is brushed stainless steel, the stools have a shabby chic old-school finish, and the tables all have a certain sense of antiquity, yet they are great quality.
The menu is easy-peasy, I want it all. Breakfast has everything from Griddle Cakes with blueberries, to Shrimp n' Grits, to Big River Granola and Yogurt. Lunch and Dinner are burgers, pulled-pork sandwhiches, fried chicken po'boys, and a few vegan and vegetarian options. You can have a malt, shake, beer, or water. Most dishes come with fries or onion rings (those were great!) and are a substantial size. Pricing is fair, and what's more, it's a place I want to support. The chef sources his meat locally, Marin Sun Farms, and many of his veg, too.
I highly suggest planning a trip by there either on your way up to Wine Country, or even just for a beautiful road trip. They are open 6 days a week from 7-7, with the exception of Sunday (which I think is ridiculous!!!!!!!!! have you seen the traffic heading back to SF? I say capitalize on the sad souls that have to sit in bumper-to-bumper traffic just to get back to 37! ) Good luck to Fremont Diner, the burger was great, and the place just emits a comfortable, homey vibe.