Trader Joe's Dumpling Bake

The internet's favorite freezer-aisle hack: plump frozen gyoza tucked into bubbling marinara, baked until the cheese turns golden and the dumpling edges go crispy. If dumplings are your love language, our Cabbage Dumplings are another must-try. Four ingredients, one dish, zero chopping — this is weeknight dinner at its smartest.

Baked dumpling casserole with golden gyoza dumplings in bubbling marinara under melted mozzarella, fresh basil on top
Prep time5 min
Cook time30 min
Total35 min
Yield6 servings
CuisineAmerican
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🧺Ingredients

  • 2 bags (16 oz each) Trader Joe's frozen gyoza (pork or chicken)
  • 1 jar (24 oz) marinara sauce
  • 2 cups (8 oz) shredded low-moisture mozzarella cheese
  • 1/2 cup (2 oz) grated Parmesan cheese
  • 1 tsp Italian seasoning
  • 2 tbsp olive oil, for the baking dish
  • 1/4 tsp red pepper flakes (optional, for heat)
  • 1/2 cup shredded provolone cheese
  • Fresh basil or sliced scallions, for serving (optional)

👩‍🍳Instructions

  1. Heat the oven. Preheat to 400°F (200°C). Brush a 9×13-inch baking dish with the olive oil.
  2. Sauce the bottom. Spread 1 cup of the marinara evenly over the bottom of the dish — this keeps the dumplings from sticking and steaming instead of crisping.
  3. Arrange the dumplings. Nestle the frozen gyoza in a single snug layer over the sauce, flat-side down where possible. Pour the remaining marinara over and around them.
  4. Cheese it up. Sprinkle the mozzarella and Parmesan evenly over the top, then dust with the Italian seasoning.
  5. Bake. Bake uncovered for 28–32 minutes, until the cheese is golden and bubbling and the dumpling edges are lightly crisped. For extra browning, broil the last 2 minutes — watch closely.
  6. Rest and serve. Let stand 5 minutes so the sauce sets, then shower with basil or scallions and serve straight from the dish.

💡 Dumpling bake smarts

Keep the dumplings frozen — thawed dumplings turn gummy in the oven. Any Trader Joe's gyoza flavor works (pork, chicken, or Thai shrimp), and the soup dumplings are incredible here too. Swap the marinara for vodka sauce or sweet chili sauce to change the whole personality of the dish. Leftovers reheat best in a 375°F oven for 10 minutes to re-crisp the cheese.

❓Common questions

Can I use a different brand of frozen dumplings?
Absolutely — any frozen potstickers or gyoza work. Keep them frozen going into the oven and add 3–5 minutes if they are extra large.

Can I add vegetables to the bake?
Yes — stir a couple of handfuls of baby spinach or frozen peas into the sauce before baking. They tuck right in and make it a fuller meal.

How do I store and reheat leftovers?
Refrigerate up to 3 days. Reheat in a 375°F oven for about 10 minutes to re-crisp the cheese; the microwave works but softens the dumplings.

Is this freezer-friendly?
Assemble it unbaked (without the cheese on top is best), wrap tightly, and freeze up to 2 months. Bake from frozen at 375°F for 50–60 minutes, adding cheese for the last 15.

Cheesy baked dumpling casserole with golden crispy gyoza edges
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