The Best Diner Restaurants in Walnut Creek, California

Buttercup offers a casual, diner-style setting with a broad menu of American comfort dishes, from chicken-fried steak and French dip sandwiches to hearty breakfasts. The kitchen also features Portuguese-inspired specialties such as Linguica Benedict. A spacious dining room, two outdoor seating areas, and welcoming staff create a comfortable, family-friendly atmosphere.