Sam’s is pretty good and quick. Another option down the street is Ali Baba, which has various middle eastern grilled items, a really good burger ( my personal favorite is the mushroom burger), and one Persian special every day – – on weekends it’s Fesenjoon, a chicken, Walnut, and pomegranate juice stew. I’ve not been to either in these places in a decade, so I don’t know if the quality has changed (Yelp pics look the same).
http://www.konditoreidavis.com closes early in the afternoon, and would be a good option for an Austrian pastry upon arrival and Davis.
Davis has become a hotbed of Chinese food.
Village pizza grill is best for salads and sandwiches ( I think I ate their BLT based on a tip from @geo12the ) – I didn’t think their pizza was very special, and in fact I prefer their sliced style pizza at their location next to the train station, Village bakery
Another options would be to get picnic supplies at the Davis food co-op, which is pretty impressive.
