Heat oil in a large pot over medium-high heat. Add scallions and roasted red peppers; sauté until tender, a couple of minutes. Stir in flour and cook until evenly distributed. Whisk in coconut milk, followed by nutritional yeast and corn; bring to a simmer. Continue to simmer to thicken and blend flavors and, if using fresh corn, until the kernels turn from a raw to cooked look, a couple of minutes. If serving as a side dish, see note above, or continue with one of the Jumpstart Recipes. (Can be covered and refrigerated up to a week or frozen for several months.)