Consider this dish a problem-solving variation on a classic. Ratatouille is a richly-seasoned, but not heavy, French vegetable stew featuring tomatoes, bell peppers, zucchini and more summer vegetables. The trouble is that those veggies are at their best during a season when it’s too hot to stew anything. That’s why this recipe is so ingenious. It puts the Instant Pot® to good use, so your kitchen can stay cool. Not only that, but this recipe turns this classic side into a hearty main dish…