Vegan One Pot Mushroom Tetrazzini

A one pot wonder? Or a one pot miracle?

My mom used to make chicken tetrazzini a lot. The flavor of this mushroom tetrazzini makes me feel all warm and cozy inside. It is the most comforting dish I can possibly imagine, perfect for all the cold winter days. When I woke up this morning, it was 23 degrees outside, and all I could think of was a big bowl of this amazing one pot meal! It is so damn delicious, I could not stop eating it.

I want to eat this mushroom tetrazzini every day for the rest of winter. Good thing it is a one pot meal and ready in under 30 minutes! Making it super easy to fulfill my dreams! It comes out of the oven steaming hot, with brown and crusty bread crumbs on top! The edges of the dish that are crisp are my absolute favorite!

My husband hates peas, and this is the only way he will eat them. He says this pasta dish is so good, it even makes peas taste good. I am personally a big fan of peas, however, you can always leave them out or replace them with something else. The peas are amazing, though, and I highly recommend them!

Warm, creamy, dreamy, hearty, healthy. The flavor is kind of indescribable, but once you take a bit, you will understand. Then be confused about why something so easy and simple can taste so amazing.

This should definitely be on your weeknight meal repertoire from now on. During the week, I want something quick but still outstanding, this is the answer to all your weeknight meal dilemmas. Easy to make gluten free, just use some gluten free all purpose flour to make the roux, and use your favorite gluten free pasta! I hope you enjoy, but I think it would be impossible not to!

Vegan One Pot Mushroom Tetrazzini
Prep Time
5 mins
Cook Time
20 mins
Total Time
25 mins

My vegan take on the classic Tetrazzini dish. Creamy noodles, mushrooms and peas. One pot then baked with bread crumbs on top!

Course: Main Course
Author: Lauren Hartmann
  • 1 Tbsp. Olive oil
  • 16 oz. Mushrooms, sliced, I used baby bella
  • 2 Cloves Garlic, chopped
  • 1/4 C. Vegan butter, I used Earth Balance
  • 1/4 C. All purpose flour
  • 3 C. Vegetable broth
  • 1 C. Almond milk or other non dairy milk of choice
  • 10 oz. Spaghetti
  • 1/2 C. Frozen peas
  • 1/2 C. Panko bread crumbs
  • 2 Tbsp. Nutritional yeast
  • Salt and Pepper to taste
  • Parsley to garnish
  1. Preheat the oven to 450 degrees.

  2. Now in an oven safe pot, heat the olive oil on medium high. Then add the sliced mushrooms and garlic. Saute for 4-5 minutes until the mushrooms have released their liquid and it has evaporated. Season with salt and pepper. Once the mushrooms are done, remove them from the pot and set aside. 

  3. Now add the vegan butter to the pot and melt. Reduce heat to low. Cook for a minute, stirring, then add the flour. Whisk together to make a roux. Cook for another minute or two until it has thickened. 

  4. Now add the veggie broth and almond milk. Whisk to combine with the roux. Now bring heat up a bit, and bring to a boil. Season with a bit of salt and pepper.

  5. Then add the spaghetti. I like to snap mine in half. Then stir to make sure it is fully covered by the liquid. Cook for just about 2 minutes(you want it still to be firm when you put it in the oven so it doesn't over cook). Stirring.

  6. Then add back in the mushrooms and the frozen peas into the pot. Stir to combine. Cook for just another minute. Taste and adjust seasoning.

  7. Now turn off the heat. In a bowl combine the panko and nutritional yeast. Sprinkle on top of the pasta. Now either drizzle with olive oil, spray with non stick spray, or put a few pieces of vegan butter on the top just to brown the bread crumbs. 

  8. Bake at 450 degrees for about 10 minutes until bubbly and the top has browned. Serve immediately with parsley if you want!

Recipe Notes

If you want more super crispy bread crumbs for the top, you can just add them to a pan with some olive oil and brown them. It's delicious!


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  • Reply
    January 8, 2018 at 8:41 pm

    this was such a hit with my family! my 9 and 1 year old loved it!! i didn’t want to stop eating it!

    • Reply
      Lauren Hartmann
      January 9, 2018 at 1:43 am

      Yessss! This is one of my favorites! I’m so happy to hear this!

  • Reply
    January 12, 2018 at 4:34 am

    This. Was. So. Good! My omnivore hubby loved it and as he was piling a huge forkful into his mouth he says “this tastes a lot more complex than a basic pasta dish.” But it was so easy 🙂

    • Reply
      Lauren Hartmann
      January 12, 2018 at 10:30 am

      That is awesome! I’m so happy you guys liked it!!

  • Reply
    250 Best Vegan Recipes | Prudent Penny Pincher
    January 13, 2018 at 12:19 pm

    […] Vegan One Pot Mushroom Tetrazzini from Rabbit and Wolves […]

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