What makes Stone Mill Bakers‘ (2518 Kirby Drive, 713-524-6600) signature curried chicken salad sandwich ($6.95) different? Everything. Start with what Stone Mill does best: bread. The freshly baked wheat slices are dense but moist, loaded with plump raisins and crisp buttery walnuts. Add a thick, neat layer of classy chicken salad — sturdy, never runny and made with strictly white meat. Fold it with a creamy, golden curry mayo that’s fragrant and warm with exotic spices. And then — this is the secret — use the lightly dressed salad greens that come on the side to fluff up your sandwich. The resulting lunch is sweet, crunchy, savory and substantial. Oh, and don’t forget healthy.