If you take a little drive up to Oceanside, Alex Road (Prince) park and Melba Bishop are both really fun. Juanita's is my go-to for mexican food in Encinitas, but if you go to Oceanside there's a spot called Mariscos Ensenada that has amazing seafood if you're into that. The Leucadian is a chill local dive with pool tables, shuffleboard, etc... then Bier Garden in Encinitas is a little nicer restaurant spot with a good selection of brews. Stone Brewery has a tasting room in Oceanside as well that's really cool... Encinitas is kinda yuppie nightlife-wise so I don't go out there too often when I'm in town. Leucadia has a dinky ashtray skatepark that I really like.
Here's some other spots around there that are pretty fun/good:
Kraken, dive bar- cash only
Swami's Cafe, Local staple breakfast spot
Karina's, mexican food
Manhattan Giant Pizza
If you're into skate-tourism check out the civic center on Vulcan and D st.