Vegan Potpie Noodle Casserole: Family Meatless Monday Recipe

Need a simple, nutritious dinner the whole family will enjoy? Jenn Sebestyen shares a comforting Vegan Potpie Noodle Casserole from her book, the Meatless Monday Family Cookbook. This hearty, kid-friendly casserole blends tender pasta, mixed vegetables, and a creamy, savory sauce topped with garlic bread crumbs for a satisfying, easy weeknight meal.

A photo of two bowls filled with vegan noodle casserole, next to a casserole dish, with text reading 'vegan potpie noodle casserole.'

After a season of holiday recipes, this dish is a perfect way to start the new year with something warm and nourishing. Readers asked for casserole ideas for January, and this potpie-style noodle casserole fits the bill: straightforward to prepare, pantry-friendly, and appealing to both kids and adults.

The Meatless Monday Family Cookbook on a cutting board with dried pasta, celery and onion.

One reason this recipe stands out is how accessible the ingredients are—most are pantry staples you probably already own. The casserole combines cooked rotini with a savory vegetable-cream sauce made from sautéed onion and celery, flour to thicken, vegetable broth, and a splash of plant milk for creaminess. A frozen mix of peas, corn, carrots, and green beans adds color and convenience.

Left image: pasta and water being poured from pot into a colander. Right image: drained pasta in colander.

Jenn also includes practical “Kids in the Kitchen” tips that make cooking together fun and easy. For this casserole, she suggests letting children sprinkle the garlic bread crumbs over the top before baking—an engaging, safe task for young helpers that encourages family involvement in meal prep.

Top left: image of diced onion and celery. Top right: image of cooking veggies in pan, bottom left: image of finished noodle potpie filling, bottom right: image of casserole before baking.

This casserole is versatile. Swap the all-purpose flour for brown rice or a gluten-free flour blend to make it gluten-free. Add a drained can of chickpeas for extra protein, or use a different mix of vegetables to suit your tastes. Nutritional yeast and garlic bread crumbs provide a savory, cheesy note without dairy, and a little tamari or soy sauce deepens the umami flavor.

A photo of two bowls filled with vegan noodle casserole, next to a casserole dish.
Yield: 4 to 6 servings

Vegan Potpie Noodle Casserole

A photo of two bowls filled with vegan noodle casserole, next to a casserole dish.

“This is just like potpie, but without the fuss of a pie crust. Bonus: there are noodles in this casserole that you don’t get in traditional potpie. My kids and husband went crazy for this dish, as did everyone who tested it.” — Jenn Sebestyen

Prep Time
10 minutes
Cook Time
40 minutes
Total Time
50 minutes

Ingredients

FOR THE POTPIE NOODLES:

  • 8 ounces (225 g) rotini or other medium pasta (gluten-free if desired)
  • 2 tablespoons olive oil
  • 1 yellow onion, diced
  • 2 ribs celery, diced
  • 2 tablespoons all-purpose flour (see notes for gluten-free option)
  • 1 tablespoon Italian seasoning
  • 3 tablespoons tamari, coconut aminos, or soy sauce (gluten-free if desired)
  • 1/4 teaspoon salt, or to taste
  • 1/4 teaspoon black pepper, or to taste
  • 2 cups low-sodium vegetable broth
  • 1 (16-ounce) package frozen mixed vegetables (corn, peas, carrots, green beans)
  • 1 cup cashew milk or other creamy plant-based milk
  • 2 tablespoons nutritional yeast (optional)

FOR THE GARLIC BREAD CRUMBS:

  • 1/4 cup panko or regular bread crumbs (gluten-free if desired)
  • 1/4 cup nutritional yeast or extra bread crumbs
  • 1 teaspoon granulated garlic powder
  • 1 tablespoon melted plant-based butter or coconut oil

Instructions

  1. Preheat the oven to 350°F (180°C). Cook the rotini according to package directions until al dente. Drain and set aside.
  2. Heat olive oil in a large, deep skillet over medium heat. Add the diced onion and celery and sauté 5–6 minutes, until softened and translucent.
  3. Stir in the flour until combined and no dry flour remains. Add Italian seasoning, tamari, salt, and pepper, stirring to incorporate.
  4. Gradually whisk in the vegetable broth to create a smooth sauce. Add the frozen mixed vegetables, plant milk, and nutritional yeast (if using). Bring to a simmer and cook a few minutes until the sauce thickens.
  5. Stir the cooked rotini into the sauce, then transfer the mixture to a 9×13-inch (23×33 cm) baking dish.
  6. In a small bowl, combine the bread crumbs, nutritional yeast, and garlic powder. Pour the melted plant-based butter over the crumbs and stir until evenly moistened.
  7. Sprinkle the garlic bread crumbs over the casserole and bake 20–25 minutes, until the crumbs are golden and the filling is bubbly.

Notes

Gluten-free option: replace the all-purpose flour with brown rice flour or a gluten-free flour blend. For extra protein, add a drained and rinsed 15-ounce can of chickpeas. Kids can help by sprinkling the garlic bread crumbs on top before baking.

© Jenn Sebestyen
Cuisine: American
/
Category: Dinner

img 7494149123 14

A photo of two bowls filled with vegan noodle casserole, next to a casserole dish and cookbook.

If you’re planning gatherings or book events, keep in mind that comfort casseroles like this travel well and can be portioned easily for crowds. For meal prep, bake and cool the casserole, then refrigerate for up to three days or freeze portions for future meals. Reheat in the oven to keep the topping crisp.

A photo of two bowls filled with vegan noodle casserole, next to a casserole dish.
More recipes like the Potpie Noodle Casserole:
  • Vegan Shepherd’s Pie
  • One Pot Mushroom Spaghetti
  • Gluten-Free Millet Stuffing

This recipe was shared with permission from the publisher. It’s an approachable, family-friendly entrée that highlights easy substitutions and ways to involve kids in the kitchen. Try it as a weeknight dinner, make-ahead meal, or cozy weekend bake—it’s a reliable, flavorful option for plant-based family meals.