Step 1: Preheat oven to 350℉. Line a baking sheet with parchment paper.
Step 2: Divide sliced avocado on the English Muffin halves and top with the mozzarella cheese. Place in the oven for 5 minutes or until the cheese is warm and melted.
Step 3: Remove from the oven and top with the basil leaves, drizzle over the olive oil and sprinkle on the black pepper to your liking. Enjoy!