Start by preheating your oven to 400°F (205°C).
While the oven is heating, peel the butternut squash and chop it into bite-sized cubes.
In a large mixing bowl, combine the olive oil, cumin, paprika, garlic powder, salt, and pepper. Mix well.
Add the butternut squash cubes into the bowl and toss them until they’re well-coated with the seasoning.
Spread the seasoned butternut squash cubes on a baking sheet in a single layer.
Place the baking sheet in the oven and roast the squash for about 25 minutes, or until they’re tender and slightly browned.
In the meantime, heat the black beans on the stove in a small pot, stirring occasionally.
Once both the squash and black beans are ready, heat the tortillas. You can do this by placing them directly on the stove flame for a few seconds or in a dry skillet.
To assemble your Butternut Squash and Black Bean Tacos, lay a tortilla flat, then add a generous amount of roasted butternut squash and black beans.
Garnish with fresh cilantro and avocado slices.
Squeeze a lime wedge over your taco for that extra zing.