At 501 Cottage Road in South Portland, Rattle Shake Grill is a locally owned retro diner-style spot famous for phenomenal smash burgers, crispy onion rings, handspun shakes, and fresh salads in a fun, upbeat yet relaxed setting. Every item is crafted with fresh ingredients and diner precision.

We named Rattle Shake Grill a Diamond Destination because its smash burgers and sides deliver top-tier flavor, freshness, and execution that consistently earn it recognition as one of the region’s best casual lunches. The nostalgic-yet-modern vibe is perfect for friend groups or couples seeking elevated comfort food that outshines every other option nearby.