Here’s a weeknight shortcut version that gives us nearly the same flavour as but with less slicing and layering fuss:


⚡ Quick Ratatouille Gratin (Shortcut Version)

Ingredients (serves 4)

  • 1 medium zucchini, diced
  • 1 medium eggplant, diced (skin on, if tender)
  • 2–3 tomatoes, diced (or 1 can diced tomatoes, drained)
  • 1 large onion, diced
  • 2 cloves garlic, minced
  • 3 tbsp olive oil
  • ½ cup shredded mozzarella
  • ¼ cup grated parmesan
  • 1 tsp dried oregano (or Italian herb mix)
  • Salt & pepper, to taste

Method

  1. One-pan roast
  • Toss zucchini, eggplant, onion, and garlic with olive oil, salt, pepper, and oregano.
  • Spread on a baking sheet and roast at 400°F / 200°C for 20–25 minutes, stirring once, until vegetables are soft and lightly browned.
  1. Tomato boost
  • Stir in the diced fresh (or canned) tomatoes. Roast 5 more minutes to meld.
  1. Assemble & cheese
  • Transfer everything into a shallow baking dish.
  • Scatter mozzarella and Parmesan evenly on top.
  1. Final bake
  • Return to oven for 10 minutes, just until the cheese is melted and bubbling.
  • Optional: broil for 1–2 minutes to crisp the top.
  1. Serve
  • Done! No careful layering, just roasted ratatouille goodness under a cheesy crust.

👉 This version skips the “fanned vegetable” look but nails the flavor. Perfect for when you want the idea of that French vegetable pie without the prep time.

Method: