Sheet Pan cauliflower Tacos

Ingredients

• 1 head cauliflower
• 1 poblano pepper
• 1 white onion
• 1/4 cup olive oil
• 1 tbsp kosher salt
• 1 tsp mexican oregano
• 1 tsp cayenne
• 1 tbsp ground cumin
• 1 tsp chili powder
• 1 tbsp lemon juice
• 1 tbsp granulated garlic
• 1 lime zested and juiced
• 1 can black beans
• 1 cup fresh chopped cilantro
• 1/2 cup fresh diced green onions
• 2 cups cooked chicken
• favorite tortillas for serving