We spent two days at Mendocino last week. The first night following a lead below, we had a burger at the Heritage House bar. Really large and uncrowded area facing the ocean with a very good view. The burger was fine but a caution: it is $11 during the evening (no idea if cheaper earlier), no draft beer and bottles are about $4 each so it is not cheap. But I enjoyed it.
The next day we had lunch in Mendocino at Patterson's Pub on Lansing Street. And a nice pub it is: dark, clean, many drafts and a good sized menu. I had the daily soup which was chicken vegetable with some curry type spice and a Caesar salad. Soup very good and salad average. Both good size and $4 each while the drft Harp's were about $2-2.50 each. Long list of great looking burgers and sandwiches. Preferred greatly for beer and food both to Heritage House bar except for view. A couple cautions: no one under 21 allowed except canines and it's cash only.
We ate dinner at Stevenswood Inn, currently acclaimed as the best restaurant in the area by people in the region. Prices are Bay area for entrees but they are generously sized. We split a salad containing watercress which was excellent. My wife had a great steak and I had very good lamb. The dishes seem to be contemporary French with light but flavorful clear sauces with the meat and were probably demiglace based. Three types of bread were offered: a flat bread stick, a rye and a savory, warm herb bread with three toppings on the side including an herb butter and basil oil. Dessert was chilled apricots topped with a blackberry "slush" and some crytallized sugar- sounds weird but was a great, light way to end the meal. The service was warm and excellent. My only big criticism is the pedestrian wine list. Corkage was $15-20.
We stayed at the Stevenswood Lodge which included a cooked breakfast. There aren't really options for it but it included coffee, juice, fruit and a warm single entree: a souffle like dish one day and a breakfast tostada the other. Both meals were definitely above average for breakfast. They offer an internet room special at the link below as things are quite slow on the North Coast this summer.