Yearning for a seasonally inspired lunch last weekend, I made the quick walk from my Brooklyn apartment to Bklyn Larder, the new specialty grocer and prepared-foods shop on Flatbush Avenue. A few blocks from owners Francine Stephens and Andrew Feinberg’s lauded restaurant, Franny’s, the shop extends its Greenmarket-fresh credo to sandwiches, terrines and other dishes. I loved eating my delightfully buttery sautéed-beet-green-and-ricotta sandwich while gawking at the cheese and meat cases—and anticipating my return for more in-house tastings. This home cook plans to make Bklyn Larder a regular post-Greenmarket stop.