Grilled Avocado and Vegetable Tacos

medium zucchini, cut into 1/4-inch-thick slices

medium yellow squash, cut into 1/4-inch-thick slices

red bell pepper, thinly sliced

yellow pepper, thinly sliced

small red onion, thinly sliced

olive oil, plus extra for brushing avocados

fresh lime juice

Old El Paso Taco Seasoning

ripe avocados

Salt and black pepper,

Old El Paso Stand ‘n Stuff Soft Flour Tortillas

roughly chopped cilantro

cotija or queso fresco cheese