Slow Cooker Dinner

Crockpot Chicken Lo Mein

Chicken and hard vegetables cooked in a whisked soy, oyster and hoisin sauce, with snow peas added at the end and noodles boiled separately and tossed through.

4 hrs 15 min · 6 servings · Dinner, Main Course

Lo mein noodles tossed with shredded chicken, red pepper, carrot and snow peas in a glossy brown sauce

Recipe by Lily Bennett

on Recipesdarleen

25 recipes by Lily Bennett

Published November 10, 2025

How Recipesdarleen publishes recipes

Chicken slow-cooked in a whisked sauce of soy, oyster sauce, hoisin, honey, ginger and garlic, with snow peas added at the end and noodles tossed through at the table.

Fifteen minutes of prep, four hours on Low, and about twenty minutes of finishing. Six servings.

Why This Recipe Works

  • The sauce is whisked as a unit before it meets anything. Ten components poured in separately would sit in layers, and the honey would caramelise against the crock wall rather than dissolving through.
  • Two cups of broth is what makes this work as a slow-cooker dish rather than a stir-fry. It keeps the chicken submerged over four hours, and it becomes the sauce the noodles are eventually tossed in.
  • Noodles are cooked separately to just al dente. This is the same discipline the lasagna soup needs and for the same reason — pasta in a slow cooker is a thickener, not an ingredient.
  • Snow peas go in for the last ten to fifteen minutes on High. That is the difference between a bowl with something crisp in it and a bowl that is uniformly soft.
  • Rice vinegar and toasted sesame oil are both finishing-weight ingredients used at cooking stage, and they survive because there is only a tablespoon of each against two cups of liquid.

What Goes In, And When

Everything in this dish could technically go in at the start, and three things would be ruined by it. The timeline is the recipe.

  1. At the start, with the chicken

    Onion, red pepper, matchstick carrots, mushrooms, and the whisked sauce

    The hard vegetables can take four hours. Carrots and onion in particular need it, and the mushrooms give up liquid that becomes part of the sauce.

  2. After the chicken is shredded, on HIGH

    2 cups snow peas or snap peas

    Ten to fifteen minutes only. Snow peas are the one vegetable here that is meant to stay crisp, and four hours would leave them grey and limp.

  3. Optional, at the same moment

    1 tbsp cornstarch slurried with 1 tbsp water

    Five to ten minutes more on High. Cornstarch needs real heat to thicken, which is why it belongs in the High phase rather than being stirred into a Low pot.

  4. Meanwhile, in a separate pot

    8 oz lo mein noodles, boiled to just al dente

    Never in the crock. Noodles cooked in four hours of sauce dissolve and thicken the whole pot into paste.

  5. Last, off the heat

    Green onions and sesame seeds

    Garnish rather than ingredient — both lose everything to a long cook.

Ingredient Notes

Oyster sauce
A quarter cup, and it is the ingredient that makes this taste like lo mein rather than like soy-sauce chicken. There is no direct substitute in the recipe.
Lo mein noodles or spaghetti
Eight ounces, and the recipe names spaghetti as a working alternative. Cooked separately either way.
Snow peas or snap peas
Two cups, added at the very end. Either works; both are here for crispness rather than flavour.
Low-sodium soy sauce or tamari
A third of a cup. Low-sodium matters against a quarter cup of oyster sauce and two tablespoons of hoisin, which are salty in their own right.
Fresh ginger and garlic
A tablespoon of each, minced. Fresh rather than powdered — they go in at the start and four hours extracts them properly.

How to Make It

  1. Whisk the sauce

    Whisk the broth, soy or tamari, oyster sauce, hoisin, honey, rice vinegar, sesame oil, garlic, ginger and red pepper flakes in a bowl.

  2. Load the cooker

    Place the chicken in the slow cooker. Add the onion, bell pepper, carrots and mushrooms. Pour the sauce over and stir gently.

  3. Cook on Low

    Cook on Low 4 hours (or High 2 1/2 to 3 hours) until the chicken is tender and cooked through.

  4. Shred, then add the peas

    Shred or slice the chicken. Add the snow peas and cook on High 10 to 15 minutes until crisp-tender. If you want a thicker sauce, stir in the cornstarch slurry and cook 5 to 10 minutes more.

  5. Boil the noodles separately

    Meanwhile, cook the noodles in salted boiling water until just al dente. Drain and toss with a little sesame oil to prevent sticking.

  6. Toss the noodles through

    Stir the noodles into the slow cooker until coated. Adjust the seasoning with more soy or tamari, a splash of vinegar, or heat with sriracha if desired.

  7. Garnish and serve

    Top with the green onions and sesame seeds. Serve hot.

Success Tips

  • Whisk the sauce as one thing before it goes anywhere near the crock.
  • Take the chicken to 165°F rather than judging by how easily it shreds.
  • Keep the snow peas out until the final High phase.
  • Boil the noodles separately and pull them at just al dente.
  • Toss the noodles in immediately before serving, not when the timer goes.

Serving Ideas

Straight from the crock in deep bowls, with sriracha and extra green onion at the table for people who want more heat.

Storage and Reheating

Refrigerate

Refrigerate up to 3 days. The noodles keep absorbing sauce, so leftovers are noticeably drier.

Freeze

Freeze the chicken and sauce WITHOUT noodles for up to 2 months, and cook fresh noodles into it after thawing.

Reheat

In a pan over medium heat with a splash of broth, tossing until the noodles loosen.

Frequently Asked Questions

Can the noodles cook in the slow cooker?

No. Eight ounces of noodles in four hours of sauce break down and thicken the pot into paste. Boiling them separately is what keeps this a noodle dish.

Can it be gluten-free?

The ingredient list already offers tamari in place of soy sauce and notes a gluten-free option for the noodles. Check the oyster and hoisin sauces too, which commonly contain wheat.

My sauce was thin.

That is what the optional cornstarch slurry is for. Whisk a tablespoon with a tablespoon of cold water, stir it in during the High phase, and give it five to ten minutes.

Can I use chicken thighs?

They work and stay juicier over four hours. The recipe is written for a pound and a half of breasts; either way take the meat to 165°F before shredding.

Recipesdarleen

Crockpot Chicken Lo Mein

Chicken and hard vegetables cooked in a whisked soy, oyster and hoisin sauce, with snow peas added at the end and noodles boiled separately and tossed through.

Prep
15 min
Cook
4 hrs
Total
4 hrs 15 min
Yield
6 servings

Dinner, Main CourseAsian-Inspired

EquipmentSlow cooker · Pasta pot · Instant-read thermometer

Before you startWhisk the sauce in a bowl before anything goes in the crock. Ten ingredients poured separately over chicken will not distribute, and the honey in particular sinks straight to the bottom.

Ingredients

Instructions

  1. Whisk broth, soy/tamari, oyster sauce, hoisin, honey, rice vinegar, sesame oil, garlic, ginger, and red pepper flakes in a bowl.
  2. Place chicken in the slow cooker. Add onion, bell pepper, carrots, and mushrooms. Pour the sauce over and stir gently.
  3. Cook on Low 4 hours (or High 2 1/2–3 hours) until the chicken is tender and cooked through.
  4. Check the chicken with an instant-read thermometer before shredding: poultry is safe at 165°F (74°C), and tenderness alone is not a doneness test.
  5. Shred or slice the chicken. Add snow peas and cook on High 10–15 minutes until crisp-tender. If you want a thicker sauce, stir in the cornstarch slurry and cook 5–10 minutes more.
  6. Meanwhile, cook noodles in salted boiling water until just al dente. Drain and toss with a little sesame oil to prevent sticking.
  7. Stir noodles into the slow cooker until coated. Adjust seasoning with more soy/tamari, a splash of vinegar, or heat with sriracha if desired.
  8. Top with green onions and sesame seeds. Serve hot.