Bring this dessert out and your parents might just fall out of their chairs — it looks that good. No one will ever suspect that your main ingredient here is pudding out of a box. But don't get the instant kind — it tastes starchy and grainy — just stick to the "cook and serve" kind. It only takes about four minutes, so it's still a no-brainer. The fresh berries are the crowning jewels of this tart. They are always available in the supermarket but they're a lot cheaper when they're in season in the summer. If you can't find blueberries or strawberries you can substitute with a pint of fresh raspberries. The graham cracker crust is also as easy as it gets but it's a great complement for the custard and berries. You don't need a fancy tart pan for this. If you have one, great, otherwise just grab a large aluminum pie pan from the supermarket. They get the job done and come in handy for other desserts, so don't throw them away.