Easy. Hearty. Healthy. This Rustic Tuna Chowder has it all! An update on a comfort food favourite, this tuna chowder uses mini red russet potatoes! Rustic Tuna Chowder Ingredients 1 Tbsp butter 1 medium onion, minced 1 Tbsp flour 2 cups mini-red russet potatoes, quartered 1 cup EACH carrots and celery, sliced 2 cans Tuna, packed in