I have avoided those foods for years. Very easy to do without them. Example
Breakfast is avocado or guac and celery
Lunch is lettuce wrap with some protein
Dinner salad and protein
I eat a variety of fish, Chex,turkey,beef,lamb,egg etc. some with mayo or Evoo
Snacks are pumpkin seeds or a few olives, celery, radish or raw mushrooms
I keep it very simple and pre cook proteins like cox and turkey in bulk and package in serving sized bags and freeze. Easy to dump on a salad or lettuce wrap