Is Tesco finest Ham, Chestnut Mushroom & Mascarpone Wood Fired Pizza ultra-processed?

wheat flour [wheat flour, calcium, folic acid, iron, niacin, thiamin], mozzarella full fat soft cheese (milk), water, roasted formed ham with added water (8%) [pork leg, water, salt, stabiliser (tripotassium phosphate), antioxidant (sodium ascorbate), preservative (sodium nitrate)], chestnut mushroom (7%), whole milk, mascarpone full fat soft cheese (milk) (6%), rapeseed oil, tomato purée, whipping cream (milk), semolina (wheat), parmigiano reggiano cheese (milk), cornflour, parsley, salt, extra virgin olive oil, yeast, wheat starch, lemon juice, garlic, deactivated yeast, porcini mushroom powder, butter (milk), malted wheat flour, dextrose, black pepper, thyme, wheat gluten, white pepper, muscovado sugar. made using british pork. allergy advice

Kitchen staples like sugar, salt and oil. On their own they make a food processed, not ultra-processed.

• E251 Sodium nitrate Preservatives are substances which prolong the shelf-life of foods by protecting them against deterioration caused by micro-organisms and/or which protect against growth of pathogenic micro-organisms.
• Meals Products in the category "Meals" are at least group 3.
• Butter Butter, the fat churned from cream.
• Preservative Preservatives slow spoilage by microbes.
• Salt Salt, added for taste and preservation.
• Starch Starch extracted from cereals or potatoes, used to thicken.
• Sugar Sugar refined from sugar cane or beet.
• Vegetable oil Vegetable oils are pressed or extracted from seeds, nuts and fruits.
• Cheese Cheese is milk preserved with salt, cultures and rennet.