Combine the base: In a medium bowl, add the labneh, chopped arugula, diced roasted red pepper, lemon juice, minced garlic, and 1 tablespoon of the olive oil.
Mix: Fold gently with a spatula or spoon until all ingredients are evenly distributed throughout the labneh.
Chill (Optional): Cover and refrigerate for 15 to 30 minutes to allow the subtle garlic and lemon flavors to meld into the creamy base.
Garnish & Serve: Transfer to a wide serving bowl. Use the back of a spoon to create a few shallow swirls on top, drizzle with the remaining 1 tablespoon of olive oil, and garnish with extra chopped arugula or diced pepper if desired. Serve chilled or at room temperature with warm pita chips, crisp cucumbers, or crusty bread.