Salsa Verde:

• 2 tablespoons avocado oil
• 1 pound tomatillos (husks peeled and rinsed well)
• ½ yellow onion (sliced in half)
• 2 cloves garlic (skins peeled)
• 1 jalapeño (sliced in half, seeds removed for mild heat)
• ¼ cup water
• ¼ cup fresh cilantro
• Juice of 1 lime (around 2 tablespoons, plus more to taste)
• ½ teaspoon dry oregano
• 1/2 teaspoon kosher salt (plus more to taste)
• 1 ripe avocado

Grilled Steak Tacos:

• 16 ounces skirt steak (cut into 6-inch sections, substitute flap steak or flank steak)
• Juice of 1 orange (around ¼ cup)
• Juice of 1 large lime (around 2 tablespoons)
• 1/2 cup finely chopped fresh cilantro (divided in half)
• 1 teaspoon paprika
• 1 teaspoon kosher salt
• 1 teaspoon onion powder
• ½ teaspoon freshly-cracked black pepper
• ½ teaspoon smoked paprika
• ½ teaspoon ground cumin
• ½ teaspoon dry oregano
• 2 tablespoons avocado oil
• 6 green onions
• 6 corn tortillas
• ¼ cup finely chopped white onion (for serving)