Beef Udon

The BEST Asian Low-Carb/Keto recipe for Beef Udon. It's quick, easy and delicious! Umami broth topped with sliced beef and low carb noodles. Net Carb / Serving ~1g. Step by step directions with pictures makes it so quick and easy.
Course Soup
Cuisine Japanese
Keyword beefudonketo, japaneseketoudon, ketonoodles, ketoudon
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings 2



  • 2 Cups Dashi
  • 1 tbsp Soy Sauce
  • 1 tbsp Japanese Sake
  • 1 tbsp Swerve/Monkfruit
  • 1/8 tsp Salt
  • 1 Stalk Green Onion
  • 8 oz Shirataki Noodles 1 pack
  • 1/8 tsp Togarashi


  • 1/2-3/4 lbs Thinly Sliced Beef
  • 1 tbs Vegetable Oil
  • 1 tbsp Soy Sauce
  • 1 tbsp Swerve/Monkfruit


  • Gather all the ingredients.
  • Make 2 cups of Dashi and place on simmer.
  • Meanwhile, open the bag of Shirataki Noodles and strain prepackaged liquid. Pour water into a mixing bowl and add Shirataki Noodles. Set aside.
  • Add oil to fry pan and place on high heat. Once heated, add beef and cook until lightly seared. Do not move the beef when searing and should take 1-2 minutes. After the first side is seared, reduce heat to medium, break apart the meat and cook for an additional 1 minute. After 1 minute, add Soy Sauce and Swerve/Monkfruit, stir and continue cooking until meat is fully browned. Remove from heat and set aside.
  • Add Swerve/Monkfruit, Japanese sake, Soy Sauce into Dashi from step Taste and if too light, adjust with salt only. Maintain on simmer.
  • Cut green onions into thin slices.
  • Strain water from Shirataki Noodles and add into a serving bowl.
  • Transfer cooked beef and 1 cup of broth into the serving bowl.  Top with green onions and sprinkle Togarashi as desired.