Succotash, a combination of corn kernels and beans with other vegetables, is one of many American Indian dishes early settlers gladly adopted. The version here serves as a delicious bed for seared sea scallops.
Melt butter in a large skillet over medium heat. Add leek; cook until softened, 2 to 3 minutes. Add bell pepper, lima beans, and okra; cook, stirring occasionally, until tender, about 6 minutes. Add corn; cook until just tender, about 2 minutes more. Stir in chives, oregano, 2 teaspoons salt, and 1/4 teaspoon pepper. Cover to keep warm.
Heat oil in a large nonstick skillet over medium-high heat until hot but not smoking. Add scallops; cook (in batches, if necessary, to avoid crowding skillet), turning once, until golden and just translucent in centers, about 3 minutes per side. Serve scallops on top of succotash, and season with salt and pepper.