Grilled Hawaiian Sandwiches

Ingredients

• 5-1/3 ounce plain Greek yogurt
• 3 Tablespoons crushed pineapple, well drained
• 3 Tablespoons sweetened shredded coconut
• 1/8 teaspoon salt
• 8 slices smoked ham, medium thickness
• 1 green bell pepper, sliced 1/2 inch thick
• 1 orange bell pepper, sliced 1/2 inch thick
• 2 green onions, whole
• 8 canned pineapple rings, well drained and patted dry (or use fresh!)
• 1 teaspoon sea salt
• 1/2 teaspoon black pepper
• 8 large crusty sandwich rolls, split lengthwise
• 8 slices provolone cheese
• 3 Tablespoons salted butter, room temperature