Grilled Sausage Sliders

Ingredients

• 1 pound Premio Sausage (choose your favorite), removed from casings
• 1 tablespoon olive oil
• 1 large onion, thinly sliced
• 1 red bell pepper, thinly sliced
• 1 yellow bell pepper, thinly sliced
• 1 orange bell pepper, thinly sliced
• 1 bunch spinach (about 4 cups), thick stems removed
• 12 Hawaiian sweet rolls, split or small dinner rolls
• Butter for rolls
• Kosher salt
• black pepper