De-stem the mushrooms, then in a large bowl, combine mushrooms, olive oil, vinegar, red onion, garlic, oregano, diced sun-dried tomatoes, rosa tomatoes, chilly sauce, and thyme.
Season with salt and pepper, to taste.
Transfer to an airtight container and place in the refrigerator for at least 1 hour.
Place a large frying pan on high heat then add the gills of the mushroom up to a frying pan, cover with a lid or baking paper.
Simmer for 10 minutes then turn the mushrooms over, add the marinade and give them another 5 – 10 minutes before serving.
Place cauliflower in a steamer over a large pot of boiling water.
Steam for 15 minutes until tender, in the same pot, heat the butter over medium-high heat.
Blend cauliflower and garlic in a food processor on a high setting until smooth. ...Transfer blended cauliflower into the pot with the garlic.
Slice the mushrooms, arrange the spinach, garnish with the mashed cauliflower, and sprinkled with cheese and thyme.
If not serving immediately, you can place in oven at 180° Celsius / 356° Fahrenheit for 15 minutes when you need to serve, this makes it much more YUMMY!