If you don't have store-bought pork broth, you can make your own by simmering pork bones, onion, garlic, ginger, and water for a few hours. Strain the solids and keep the broth.

Follow the package instructions to cook the udon noodles. Once cooked, drain and set aside.

In a pan over medium heat, cook the sliced pork until browned and cooked through. Season with salt and pepper. Set aside.

In the same pan, sauté the sliced mushrooms until they are golden brown and cooked. Set aside.

In a large pot, combine the pork broth, soy sauce, mirin, and sesame oil. Bring it to a simmer.

Add the cooked udon noodles, sautéed pork, and mushrooms to the simmering broth. Let it cook for a few minutes until everything is heated through.

Taste the broth and adjust the seasoning with soy sauce, salt, or pepper if needed.

For an extra touch, sprinkle some nori strips over the bowls.