Mashed potatoes with mushroom sauce

Ingredients

• 1 large head of cauliflower, cut into florets
• 2 potatoes, diced
• 2 cloves of garlic
• 1/2 tsp olive oil
• 1/4 tsp sea salt
• 6 cups mushrooms
• 1 onion, diced
• 1/4 cup dried tomatoes
• 1/4 cup mashed potatoes and cauliflower
• 1/8 tsp or a pinch each of thyme, sage, and rosemary