Heat the oil in a heavy bottomed pan over medium-high heat.
Add the corn, toss and let it sit cooking until charred, mix it up and let it char again, about 6-10 minutes.
Add the onion and jalapeno and saute until tender, about 2-3 minutes.
Add the garlic and saute until fragrant, about a minute.
Mix in the black beans, remove from heat and season with salt and pepper.Assemble the tacos by topping the tortillas with the corn and black beans followed by the zucchini salsa, roasted poblano crema, queso fresco and cilantro and serve with lime wedges.