Garlicky Stewed White Beans with Mixed Peppers

Heat olive oil in a large skillet over medium-high heat. Add bell peppers, and cook 5 minutes or until tender, stirring frequently. Add garlic and crushed red pepper; cook 1 minute, stirring constantly. Stir in water, sage, beans, and tomatoes; bring to a boil. Reduce heat; simmer 10 minutes or until thick, stirring occasionally. Sprinkle with black pepper.