Peel the garlic cloves & thinly slice.
Add 1/2 C. of oil to a large saucepan. Heat over medium high heat. Add the garlic & onion and stir to coat in the oil.
Cook until they start to brown (about 8 minutes), stirring every couple minutes.
Cook for about 10 minutes over high heat, until all the vegetables are soft. Stir every couple minutes.
In the RV, we straddle two burners so the heat will be high enough. Also, in an RV, you may need to rotate the pan 180 degrees every couple minutes so the vegetables will cook evenly.
Chop up the cabbage into 2 inch long strips.
Add the cabbage to the stir fry mixture. Sprinkle with salt.
Cook for about 7 minutes, stirring constantly, until the cabbage is cooked to desired crispness. Add about 2 T. of gluten free soy sauce.
Stir to finish cooking, another couple minutes. Add additional soy sauce to taste.