I still have a house in Laguna, but choose not to live there any more. However, having lived there on and off since kindergarten, I do know a few places to eat. The Casa Del Camino at 1289 S. Coast Hwy is widely touted as the best sunset drink on the coast with the rooftop bar and excellent bitings restaurant downstair (this has nothing to do with the fact that my family owned the place for 23 years, but sold it in the late 90's). Javier's is good, especially if your goal is to pick up recently divorced women/men. I like the little dive, "The Feast" on Glenneyre just north of Thalia st. for Mexican fare. Las Brisas is another excellent place to get hammered and also meet or observe singles in the mating dance, best peach daiquiris. You can then walk along the cliff walks and the beach boardwalk to hopefully walk off and metabolize some of the booze. If I want actually fresh seafood (the definition of fresh is becoming increasingly looser), I go to the Balboa Peninsula to the "Crab Cooker." No frills, excellent fresh seafood (challenging parking).
Laguna and Dana Point, not really great for seafood. Tourists can't tell the difference between shark or swordfish, scallops or or meat punched out of ray fins in the shape of scallops. They also frequently can't tell the difference between fresh and recently thawed from exposed Siberian seafloor fish. I would recommend more, but I would have to confirm their continued existence. Restaurants in Laguna have an average lifespan of roughly 6 months. Never could quantify what makes one persist or fold, certainly isn't related to the quality of food served (my mom sold restaurants for about 10 years in Laguna).
Really the only thing I enjoy to there now is take walks in the morning from one side of town to the other along the beach. There are the "Art" places to visit as well, however the definition of "Art" is closely related to the earlier discourse on fish. Most of the artists from Laguna have either died from liver failure or moved to Sedona or Santa Fe (lower rent).