Cauliflower Risotto with Roasted Mushrooms (Low Carb/Paleo/Vegan)

!For the roasted mushrooms:

Porcini mushrooms, sliced

salt and pepper

olive or coconut oil cooking spray

!For the risotto:

medium yellow onion, thinly diced

minced garlic

medium head cauliflower, cut into florets

low sodium vegetable broth

white wine vinegar

salt and pepper,