Mix together the sauce ingredients. Set them aside.
Heat the oil in a large wok (or saucepan) over high heat. Add in the sliced onion and garlic and cook for about 1 ½ minutes or until golden.
Add in the ground "beef" or tempeh and sauté until browned. If using vegan ground beef, use a wooden spoon to break up the meat as you go.
Pour over the sauce, stir and allow it to cook for about 2-3 minutes until the onions and "beef" start to caramelize.
Push the onions and "beef" to the sides of the wok and pour in the water and press in the ramen noodles. Allow the noodles to cook for about 1 minute on one side before flipping them over to cook another 30-45 seconds on the other side. Separate the noodles once soft and stir everything well to combine.
Divide the noodles between bowls, top with roasted veggies (if using), optional garnishes and dig in!
Notes
*For a gluten-free option, use tamari instead of soy sauce and brown rice ramen noodles instead of wheat noodles.