1 pound skinless, boneless chicken breast halves – cubed
4 medium potatoes, peeled and cut into 1/4-inch cubes
1 medium sweet red pepper, chopped
2 garlic cloves, minced
1 tablespoon olive oil or canola oil
1 (26 ounce) jar meatless spaghetti sauce
1 3/4 cups frozen cut green beans
1 teaspoon dried basil
1/4 teaspoon salt
1/4 teaspoon crushed red pepper flakes
pepper to taste