Vegetarian Succotash

Ingredients (15)

• 2 tablespoons extra-virgin olive oil
• 4 ears fresh corn, shucked (or about 3 cups frozen corn, thawed)
• 1 teaspoon fine salt, divided
• 1 small red onion, chopped
• 1 poblano pepper, chopped
• 1 red bell pepper, chopped
• Optional: 1 medium jalapeño, ribs and seeds removed and chopped
• 2 cloves garlic, pressed or minced
• 2 cups fresh or frozen lima beans*, thawed under cool running water
• 2 tablespoons butter, plus more for serving
• Freshly ground black pepper, to taste
• Optional: Pinch of cayenne (for even more spice)
• 1/4 cup chopped fresh basil, divided
• 2 tablespoons chopped green onion
• Flaky sea salt or kosher salt, for serving