Grilled Fish Tacos – Memorial Day is Grilling Day!

Ingredients

• 2 garlic cloves, finely chopped
• 3 Tbsp. fresh orange juice
• 1 tsp. dried oregano (preferably Mexican)
• 2 cups chopped white onion, divided
• ¾ cup chopped cilantro, divided
• ¼ cup extra-virgin olive oil, plus more for the grill
• 5 Tbsp. fresh lime juice, divided
• 1 lb. tilapia, striped bass, or sturgeon fillets
• Kosher salt, freshly ground pepper
• 1 cup mayonnaise
• 1 Tbsp. milk
• 4 corn tortillas
• 2 avocados, peeled, pitted, sliced
• ½ small head of cabbage, cored, thinly sliced
• Salsa Verde
• Lime wedges (for serving)
• 1-pound tomatillos, husked, rinsed, quartered
• ½ medium onion, coarsely chopped
• 1 garlic clove, crushed
• 1 serrano chile, seeds removed if desired, coarsely chopped
• ¼ cup fresh cilantro leaves with tender stems
• Kosher salt