1
Heat oil in a 12-inch cast iron skillet over medium-high heat. Add onion and cook, stirring occasionally, for 2 minutes. Stir in bell pepper and sausage; continue to cook until lightly browned, about 2 to 3 minutes. Add zucchini, yellow squash, garlic, and broth; cook until tender, about 3 minutes.
2
Stir in beans, rice, and corn; cook, stirring occasionally, until just warmed through, about 2 to 3 minutes. Season with salt and pepper.