Assuming you mean for breakfast, a parfait with fruits and nuts would be perfect - even preferable to eggs. It tastes lovely, and you get peotein from nuts, fat from yoghurt, and vitamins from fruit!
As protien specific replacements: Dehydrated vegetable protien, nuts, hummus(puree from chickpeas), beans, ligumes, tofu. As a meal substitue for quick breakfast: fruits(apple, orange, a banana), oatmeal, grits, soup in a thermos, smoothies, trailmix(nuts and dehyradtes fruits and berries), juice, salad, etc. As replecement binders in recipes: applesauce, flour(NOT gluten free), cornstarch, grits, breadcrumbs, animal fat, ground raw animal meat, rice flour, etc.
For baking and pancakes I like to use ground flax or applesauce. For breakfast I think avocado or beans make a good substitute.
Other than eggs you can eat food rich in veg proteins such as legumes, tofu or nuts. Nuts are great for your health because they are a great source of proteins and vitamines and they are really tasty ! It will be hard not to indulge with them..
Answers reflect the personal experiences of Fabulous community members. They are not medical or professional advice — for guidance about your health, talk to a qualified professional.