Roasted Scallop Squash with Zucchini Soufflé Stuffing: A Seasonal Showstopper

Elevate your summer table with roasted scallop squash filled with a light zucchini soufflé stuffing, perfect for showcasing the best seasonal produce.

By Sneha Tete, Integrated MA, Certified Relationship Coach
Created on

Roasted Scallop Squash with Zucchini Soufflé Stuffing

Celebrate the height of summer by bringing together two seasonal favorites: scallop squash (also known as pattypan squash) and zucchini, transformed into a show-stealing soufflé stuffing. This recipe turns humble farmstand finds into an elegant main or hearty side, perfect for casual gatherings or special occasions.

Why Scallop Squash and Zucchini?

  • Scallop squash: Recognized for their distinctive flying saucer shape, these squashes are tender when roasted and make perfect edible vessels.
  • Zucchini: Plentiful throughout summer, zucchini becomes light and airy when folded into a soufflé and baked inside the squash.

The combination delivers visually striking plates and incredible flavor, while using up seasonal produce in a creative way.

Ingredients for Roasted Scallop Squash with Zucchini Soufflé Stuffing

  • 2 scallop (pattypan) squash, medium-sized
  • 1 zucchini (thin, peeled and seeded)
  • 2 tablespoons butter
  • 2 tablespoons finely minced onion
  • 1/2 cup whole milk
  • 1 egg, separated
  • Olive oil
  • Salt and pepper to taste

Optional: additional herbs (thyme or chives), grated cheese for topping.

Step-by-Step Instructions

  • Preheat the oven to 375 degrees Fahrenheit (190°C).
  • Prepare the squash:
    • Wash the scallop squash thoroughly.
    • Using a sharp knife, carefully slice off the tops and scoop out the centers, creating a hollow for stuffing. Reserve the flesh.
    • Rub the cavity and exterior with olive oil, a splash of lemon juice, and season with salt and pepper.
  • Prepare the zucchini soufflé stuffing:
    • Peel and seed the zucchini, then chop finely or grate.
    • In a pan, melt 1 tablespoon butter over medium heat, add the minced onions, and sauté until fragrant and translucent.
    • Add the chopped zucchini (and reserved squash flesh) to the pan; cook gently until very tender and most moisture evaporates, leaving a concentrated puree.
    • Transfer mixture to a bowl; allow to cool slightly.
    • In a separate bowl, whisk egg yolk with milk until well combined.
    • Fold egg-milk mixture into cooled zucchini puree.
    • Beat the egg white until it forms stiff peaks. Gently fold into the zucchini mixture, being careful not to deflate the egg whites—the secret to a fluffy soufflé.
    • Season with salt and pepper, and stir in fresh herbs if desired.
  • Assemble and roast:
    • Spoon the soufflé stuffing into each prepared squash shell, filling generously but not overflowing.
    • Dot the tops with remaining butter and sprinkle with cheese if using.
    • Place stuffed squash in a lightly oiled baking dish.
    • Bake uncovered for 35-45 minutes—or until the squash is tender and the soufflé is puffed, lightly brown, and just set.
  • Serving:
    • Allow the stuffed squash to cool for 5 minutes.
    • Present whole for maximum visual impact, or slice into wedges.
    • Garnish with fresh herbs or additional cracked pepper.

This dish can be enjoyed hot, warm, or even at room temperature. It pairs beautifully with crisp salads, grilled vegetables, or as part of a summer brunch spread.

Tips for Success

  • Use fresh, young squash—older squash can be tougher and more watery.
  • Drain zucchini thoroughly: Excess water will prevent the soufflé from puffing up—cook zucchini until dry or squeeze gently in a clean cloth.
  • Fold egg whites carefully: Do not overmix once the egg whites are added.

Variations and Adaptations

  • Cheese Upgrade: Add grated Gruyère, Parmesan, or feta to the soufflé mixture for added flavor.
  • Herbaceous Addition: Stir in fresh dill, thyme, basil, or parsley for extra fragrance.
  • Spicy Kick: Add a pinch of chili flakes or smoked paprika.
  • Vegan Option: Substitute almond milk and use aquafaba (chickpea brine) for the egg white.

Nutrition and Health Benefits

IngredientBenefit
Scallop squashLow in calories; high in fiber and vitamin C
ZucchiniRich in antioxidants, vitamin A and potassium
EggsHigh-quality protein and choline
MilkSource of calcium and B-vitamins
Olive oilContains heart-healthy monounsaturated fats

As a vegetarian entrée, this recipe is balanced and nourishing, making the most of seasonal produce.

Make Ahead and Storage

  • Prepare ahead: Both squash and stuffing can be prepped a day in advance. Fill and bake just before serving.
  • Refrigeration: Store leftovers in an airtight container for up to 3 days. Reheat gently in the oven for best texture.
  • Freezing: Not recommended as the soufflé may collapse and become watery after thawing.

Serving Ideas and Pairings

  • As a main course: Serve with a summer tomato salad, couscous, or herbed quinoa.
  • As a side dish: Perfect alongside grilled meats, whole fish, or a selection of other roasted vegetables.
  • Brunch centerpiece: Slice and serve with fresh fruit, crusty bread, and iced herbal tea.

Frequently Asked Questions (FAQs)

Can I use pattypan squash instead of scallop squash?

Yes, “scallop squash” and “pattypan squash” refer to the same type—choose medium squash for best results.

How do I prevent a soggy soufflé?

Ensure the zucchini is cooked until very dry, and always fold stiffly whipped egg whites gently into the base.

Can I make this dish ahead of time?

You can prepare the filling and hollow out the squash in advance, but bake just before serving for the lightest texture.

Is this recipe gluten-free?

Yes—no flour or breadcrumbs are used in the soufflé or squash preparation.

What other vegetables can be used for the stuffing?

Try grated carrots, spinach (squeezed dry), or cooked mushrooms for variation, following the same soufflé technique.

Chef’s Notes and Final Thoughts

This recipe is a beautiful way to highlight the best of summer’s harvest, combining simple techniques (roasting and soufflé-style folding) to elevate classic vegetables. It’s flexible and forgiving—adapt the flavors to suit your tastes and available produce. Whether as an entrée or side dish, roasted scallop squash with zucchini soufflé stuffing is sure to draw praise at the table.

Related Recipes

  • Stuffed Giant Pattypan Squash: rice and vegetable filling baked in large squash shells
  • Risotto with Pattypan Squash: creamy risotto featuring slices of tender squash
  • Cheesy Stuffed Pattypan Squash: a quick bake with cream cheese and mozzarella

Expert Tips for Stuffed Squash Success

  • Choose uniform squash: Ensures even cooking and an attractive presentation.
  • Balance seasoning: Don’t skimp on salt and pepper—squash is mild and benefits from generous seasoning.
  • Let soufflé cool before serving: Helps retain structure and amplifies flavors.

Complete Nutritional Info (Per Serving)

CaloriesProteinCarbsFatFiber
140-1806g14g9g3g

These estimates will vary based on the use of cheese, herbs, and serving size.

FAQ Recap

  • Can I use other summer squash? Yes—yellow squash and young zucchini also work well.
  • Can I freeze the dish? Not recommended due to soufflé texture changes.
  • What can I add to boost flavor? Garlic, nutmeg, or a sprinkle of lemon zest brighten and deepen the stuffing.

Try this recipe for your next gathering—it’s the epitome of seasonal comfort and creativity!

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