How about a small Groceraunt for Jackson Heights? There would be 4 elements:
1. Well-curated selection of groceries (fresh and shelf-stable foods that are tasty, usable items that people who cook or assemble their own meals would buy)
2. A small selection of creative well-prepared buy-by-the-pound cooked food (chicken, salmon, grain salads, veggies: all made with 100% fresh ingredients by someone with a palate for both freshness and good health). Deliciousness and freshness would be key to making this work and having return customers.
3. A tiny section of thoughtfully prepared grab-and-go foods like sandwiches, salads, grain bowls, and a couple really good, homemade-from-real-ingredients desserts in containers that you just grab and pay for (made with fresh, attractive, healthy ingredients). These would be SO memorably good that people would return weekly for the Groceraunt's signature items.
4. Lastly, a very small sit-down-and-eat area with 10-12 tables (small menu selection—maybe 6 total menu items for each meal, and with wines by the glass, of course, and good coffee).
This place needs attractive lighting and comfortable décor because no one wants to linger (or eat) under florescent lights surrounded by plastic furniture.
One kitchen and one staff would be doing all 3 of the food options, so their time would be maximized. I would be there 3X a week if someone could pull this off.