Taco Stuffed Zucchini

Name: Taco-Stuffed Zucchini
Ingredients: 2 large zucchini; 1 tablespoon avocado oil; ¾ pound lean ground beef; 1 medium tomato, chopped; 1 bunch scallions, sliced; 1 tablespoon chili powder; 2 teaspoons ground cumin; ¾ teaspoon salt, divided; ½ teaspoon garlic powder; ¼ teaspoon ground pepper; 8 tablespoons shredded Monterey Jack cheese; 1 cup shredded romaine lettuce; 1 avocado, chopped; 4 tablespoons Pico de gallo