Duane's Prime Steaks and Seafood inside the Mission Inn is the classic upscale dining option in Riverside. The prices are steep, but the Mission Revival dining room — all carved wood, arched ceilings, and period detail — is unlike anything else in the Inland Empire. Even if a full dinner is beyond the budget, the bar is a fine place to have a drink and absorb the atmosphere of one of California's most extraordinary hotel interiors.