Preheat the oven to 375° and line an oven-proof dish or sheet pan with parchment paper. Add the cubed butternut squash (and/or sweet potato) and toss with a small splash of olive oil, and a generous amount of salt, pepper, and your favorite taco or fajita seasoning.
Roast for 25-30 minutes, or until browned and soft.
Make the Sauce
Stir together the sauce ingredients with a fork in a small cup, adding water to thin until pourable. I like to make a single serving at time, but you could also make a larger batch ahead of time.
Bake The Eggs
Remove the squash from the oven and reduce the oven temperature to 350°. Add the kale and beans to the cooked squash and gently toss, adding a bit more oil and seasoning if desired.
Create a well for the egg(s) and carefully crack the egg into it. Season with a bit more salt and pepper and return to the oven.
Bake, uncovered, until the whites are cooked but the yolk is still runny, about 10 minutes. Keep an eye on it, it's easy to under or overcook it.
Garnish & Serve
Gently slide the yummy meal off of the parchment paper onto a plate, drizzle with the sauce, and garnish as desired.