“Eat protein, vegetables and fruit (you get your carbs from fruit).”
As to “processed food= evil”, you are just repeating the latest mainstream hysteria. A can of sardine or ham (ultra processed food) is much healthier than a dish of strawberries (”health” food).
A proper diet must be simple, logical and based on facts, not dependent on rules pulled out of the hat (salt is bad, fish proteins are better than beef proteins...) or self contradictory (refined carbs are bad, carbs from fruits or whole grains are good) or trotted out by the latest diet fad (ultraprocessed food is poison).
Carbs are NOT bad for you. You need them too. Just not in the quantity and from the refined (nutrient poor) and energy dense foods people get them from. Hence, fruit is a good source. An apple, banana, pear, even a strawberry is far better than an Oreo or Snickers bar.
Processed foods as a rule, are loaded with sugars, heavy on the salt, preservatives, stabilizers, and when they over cook, irradiate, pasteurize, homogenize, they kill, break down or dilute everything in it, including good things.
Yes, berries and nuts are great. I included them in my mind under fruit.
Unless you go to the local farm to get your food or you grow it yourself, you’re left with highly processed junk, or foods that are slightly better and marketed as healthy but still processed.
You can’t escape the event horizon of the big agra and the major food manufacturers if you shop at a normal grocery store (even Whole Foods).
You can simply choose to eat horrible junk that kills you, or slightly better but massively overpriced foods marketed as natural and healthy foods that are still mass produced and modified if you get your food from a grocery store.
BTW, since you seem to be on a protein fad. To much protein gives you gout, is hard on the kidneys, and most livestock are fed antibiotics (most antibiotics are used on animals, not humans), growth hormones, have unnatural diets, they may even be cannulated, don’t get enough movement. When some animals are mass slaughtered, they produce stress hormones that are still found in the meat: cortisol.
The problem is really that when you want to make things cheap and have high profit margins, you need to get the maximum out of the ground per acre, have animals ready for slaughter quickly, be able to store the stuff a long time with minimal product loss. All of that creates a sort of “gas station” food. The foods you see at your local gas station are the perfect example of industrial mass produced low spoilage foods.