Full Belly Stuffed and Baked Avocado

Name: Full-Belly Stuffed and Baked Avocado
Ingredients: 2 ripe but firm avocados (stickers removed if there are any); 3 ounces feta cheese of choice, cut into small cubes (no bigger than 1/2); 3 tablespoons very finely minced green onions (white and green parts); black pepper; 2 teaspoons olive oil; 1/2 cup bread cut into 1/4-inch cubes; kosher salt; 1/4 cup mayonnaise; 1-3 teaspoons sriracha; 1/2 teaspoon fresh lemon juice