Making Italian Sliders is a breeze when you follow these simple steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare the Buns: Slice the slider buns in half horizontally and place the bottoms on a baking sheet.
3. Cook the Sausage: In a skillet, cook the Italian sausage over medium heat until browned. Drain any excess grease.
4. Add Marinara: Stir in the marinara sauce with the cooked sausage and let it simmer for 2-3 minutes.
5. Layer Ingredients: On the bottom half of the slider buns, layer the sausage and marinara mixture evenly.
6. Add Cheese and Toppings: Sprinkle shredded mozzarella on top of the meat mixture. Then add slices of pepperoni, bell peppers, and black olives.
7. Season: Sprinkle Italian seasoning and garlic powder evenly over the toppings.
8. Top with Buns: Place the tops of the slider buns onto the filled bottoms.
9. Brush with Olive Oil: Drizzle or brush the tops of the buns with olive oil for added flavor.
10. Bake: Place the baking sheet in the preheated oven and bake for about 15-20 minutes, or until the tops are golden brown and the cheese is melted.
11. Garnish: Remove from the oven and garnish with fresh basil leaves if desired.
12. Serve: Slice the sliders apart and serve warm.

Following these steps will yield a tray of delicious Italian Sliders that will leave everyone wanting more!