@JonA_CT you found lamb but not pork?? What a difference a few hundred miles makes in grocery stores. I can't tell you the last time I saw lamb available anywhere even the specialty meat markets.
I usually use beef OR lamb. I went with beef yesterday 'cause I can't afford to use lamb with company coming over, haha. But yes, ground lamb was available yesterday at all three stores I stopped in (Walmart, BJs Wholesale, and Stop and Shop). So was ground bison, haha. I can usually get chops and racks of lamb at all of those places too, although I typically have to hit up a different grocery in the area (ShopRite) if I want a whole leg of lamb, which is my favorite cut. Actually, I end up buying most large cuts of meat from ShopRite because they still have a butcher you can talk to in the store, and still get big primal cuts in that they will custom cut for free.
EDIT: ShopRite carries almost everything, honestly. They carry a lot of specialty cuts that reflect the diverse needs of our community, including a full selection of halal and kosher meats.