Perhaps it was inevitable that one of the newest additions to Mountain View's restaurant row would be a takeoff on the old-fashioned country roadhouse, from rough-sawn pine clapboards and vintage license plates on the walls to buckets of peanuts on the tables. Virtually every other cuisine already was represented on Castro Street when the California Roadhouse opened in September. Steak is big in the South Bay and this restaurant delivers the beef. Midwestern sirloin, New York strip, rib eye, filet mignon, and porterhouse dominate the menu -- most of the cuts available in both small and large portions. They're more likely to be graded choice than prime but they're seasoned simply, grilled properly and priced right -- as low as $10.99 for a 6-ounce sirloin. Diners who aren't keen on slabs of meat risk disappointment, though. Most of the salads, side dishes and non-beef entrees my companions and I ate on a recent rainy night were ordinary at best. In keeping with its name,...