chicken, peppers, and pineapple over rice

Ingredients

• 1/2 stick butter
• 1 small shallot, minced
• 1/2 medium green bell pepper, diced
• 1/2 medium sweet red pepper, diced
• 1/2 medium yellow bell pepper, diced
• 3 tablespoons diced celery
• 2 tablespoons brown sugar
• 3 tablespoons pineapple liquid (from can)
• 1/2 can chunk pineapple (20 oz. can), reserve juice
• 1 can chunk white meat chicken, drained (12.5 oz)
• 1 teaspoon Mrs. Dash original seasoning
• 1/4 teaspoon fresh cracked black pepper
• 2 cups long grain rice, cooked