Many folks who try to cut out animal-based are worried that they won’t get the protein that they need–especially if they like to work out or participate in active sports.
I have been a pescatarian for the last dozen or so years; a pescatarian does not eat meat or poultry, but still eats fish (in my case this excludes shellfish and other crustaceans). When I made the change, I knew that I could not feed my children and myself pasta every night; I had to plan in advance. Putting together a week’s meal plan at one time helped me to make sure there was variety in what we ate, sufficient protein and greens, and prevented me from having to run to the supermarket every day. The biggest challenge was definitely what to do about protein; I am ovo/lacto so cheeses and eggs helped out a lot. Even if you are vegan, though, there are lots of options out there. Here is an article–complete with some recipes–that addresses the issue. It also talks about some of the concerns that have come up in the past around tofu.
Here is the link from NBC News. https://www.nbcnews.com/better/lifestyle/ask-nutritionist-what-are-best-sources-plant-based-protein-ncna982496.
As the article states near the beginning, we don’t have to jump into a completely plant-based diet all at once; even little baby steps make a difference and have health and wellness implications.
Bon Appetit! Voulez-vous de veggies?