Preheat oven to 400 degrees. Oil muffin pan cups with the olive oil.
Combine Sabra Spinach and Artichoke Hummus, garlic, onions, cooked chicken, and 2 cups feta cheese a large bowl.
Cut rolls in half horizontally, creating a top bun and bottom bun.
Cut the individual top buns into quarters.
Place bottom buns into oiled muffin pan.
Place about 2 Tbsp. of filling onto each individual bottom bun that was placed into the muffin cups. Top with chopped spinach.
Place quartered top bun on top of spinach.
Sprinkle remaining feta cheese on top of completed sliders.
Bake in 400 degree oven for 10-12 minutes.