Preheat the oven to 425 degrees Fahrenheit.
Peel the butternut squash, then cut it into ½” cubes.
Drizzle the cubes with 1 tbsp olive oil, kosher salt and ground black pepper to taste.
Bake the butternut squash for about 30 minutes, mixing occasionally, until cooked through.
Place a large pan on the stove over medium-high heat. Add another drizzle of olive oil to the pan, then add the onion and garlic. Saute until the onions are cooked and turn translucent.
Add the peas or mung beans, corn, and cooked butternut squash. Season with salt and pepper, add optional spices.
Continue stirring until everything is warmed through. Serve with rice