About 1 1/2 tsp aromatic spice blend, such as Garam masala, Baharat, five-spice, curry powder, or a mild chili powder blend, plus more to taste • finely grated fresh ginger • garlic cloves, minced or finely grated • scallions thinly sliced, greens and whites separated • kosher salt, plus more to taste • black pepper • extra-large shrimp, shelled and deveined • extra-virgin olive oil • small (or halved large) cherry tomatoes, preferably yellow Sungold tomatoes • unsalted butter • Fresh lime juice • fresh mint leaves, torn or roughly chopped