Ancient grain pizza with cheese and mushrooms

Dough (soft wheat flour, whole wheat flour [whole ancient spelt flour {einkorn wheat, emmer wheat, spelt}, vegetable seed {millet seed, brown linseed, sunflower seed}, soft whole wheat flour, wholemeal rye flour, wheat gluten, vegetable fat and oil {rapeseed, palm}, sugar beet fibers, sugar, salt, dried malt barley extract, sugar candy, honey, dried whole spelt acid sourdough, enzymes, ascorbic acid {antioxidant}], water, extra virgin olive oil, yeast), seasoned mushrooms (mushroom [agaricus bisporus], sunflower seed oil, rice starch, salt, garlic, parsley, onion, vegetable aroma, mushroom aroma), white sauce (water, stracchino cheese [milk, salt, animal rennet, lactic ferments], dry mozzarella sauce [milk, enzymes, natural flavorings, wheat flour, processed cheese powder, salt]), mozzarella cheese (milk, enzymes, microbial rennet, salt), sliced red onion, grana padano dop cheese (milk, salt, animal rennet, lysozyme from eggs [preservative]), sunflower seed oil.