01 - Warm olive oil in a large sauté pan or skillet over medium heat until shimmering.
02 - Add sliced onion to the hot pan. Cook for 3-4 minutes, stirring occasionally, until softened and translucent.
03 - Stir in minced garlic and cook for 30 seconds until fragrant, being careful not to burn it.
04 - Add sliced mushrooms to the pan. Cook, stirring frequently, for 5-6 minutes until they release their moisture and begin to brown.
05 - Add sliced cabbage and thyme to the pan. Toss well to combine all ingredients evenly.
06 - Sauté the mixture for 8-10 minutes, stirring frequently, until cabbage is tender-crisp and slightly wilted.
07 - Season with salt and pepper to taste. Add lemon juice or vinegar if desired. Remove from heat, garnish with chopped parsley, and serve immediately.