Creamy Vegan Mushroom Lasagna

INGREDIENTS Marinated Mushrooms: ✅ 1 tbsp balsamic vinegar ✅ 2 tbsp soy sauce, tamari for glutenfree, or use coconut aminos +wine for soyfree ✅ 2 tsp herbs (combination of thyme, oregano, rosemary) ✅ 1/2 tsp (0.5 tsp) each garlic powder, onion powder (or use 1 tsp minced garlic) ✅ 1 tbsp vegan Worcestershire, or use red wine for soyfree ✅ 2 tsp oil ✅ 1/4 cup (62.5 ml) water ✅ 3 portobello mushrooms (about 10 oz) Creamy Garlic Sauce: ✅ 1 1/4 cup (161.25 g) raw cashews, soaked for an hour for creamier, see note for nutfree ✅ 1.75 cups (437.5 ml) water ✅ 1.5 tbsp flour (rice flour for glutenfree) ✅ 1 tsp salt ✅ 1 tsp garlic powder ✅ 3/4 tsp (0.75 tsp) onion powder ✅ 1/2 tsp (0.5) ground mustard or miso or both ✅ 1/2 tsp (0.5 tsp) black pepper ✅ 1.5 tsp herbs (1/2 tsp each of basil, thyme, ground sage) ✅ 1 tbsp extra virgin olive oil ✅ 2 tbsp nutritional yeast Lasagna: ✅...