As previously mentioned, rhubarb is a rather bitter vegetable and fibrous, so it is almost always cooked with sugar to balance its taste. Rhubarb itself has a mild tart flavor, which makes it pair beautifully with strawberries. Strawberry rhubarb pie has a sweet and tart combination that is so perfect with topped with a creamy vanilla ice cream. The pie crust is flaky and buttery in every bite! It's such a tasty combination.