This recipe for scallops in tomato sauce is an Asian-inspired version that pairs seared sea scallops with an easy-to-make tomato-lime butter sauce. Spoon over couscous or rice for a uniquely simple weeknight dish with light, fresh flavor.
Prep the scallops: Pat them dry with paper towels, season both sides with salt and pepper and set aside.
Make the tomato-lime purée: In a blender or food processor, combine diced tomatoes, fish sauce, lime juice, lime zest, and sugar. Blend until smooth.
Cook the sauce: In a small saucepan over medium heat, melt 3 tablespoons of the butter until foamy. Add the garlic and sauté until fragrant, about 1 minute. Stir in the tomato-lime purée and simmer for one minute. Season to taste with salt and pepper, remove from the heat and set aside.
Sear the scallops: In a large skillet over medium‑high heat, melt the remaining 1 tablespoon of butter with the olive oil. Add the scallops, one at a time, and cook for 1 to 1-1/2 minutes per side (depending on size). As the scallops finish cooking, use tongs to individually transfer them to a plate to avoid overcooking.
Cook the tomatoes: Quickly add the halved grape tomatoes to the same skillet and combine them with the pan juices from the scallops. Continue cooking until the tomatoes have softened, about 4 minutes.
Finish the sauce: Reduce heat to medium, stir in the reserved tomato‑lime sauce, and cook for 1 minute. Add the scallions and cook 30 seconds more. Stir in half the cilantro.
Serve and garnish: Spoon couscous or rice onto plates. Top with sauce and tomatoes, arrange scallops over the top, and drizzle with more sauce. Garnish with remaining cilantro and lime wedges if desired.