If you want to rely on answers from authoritative sources your only logical option is to go with the mainstream consensus which is still that red meat is terrible for you. As soon as you branch off into less mainstream studies you're now in the territory where you could logically justify nearly any health decision based on which studies you decide to cherry pick. At that point you have to ask yourself if you're really basing your decisions on the studies or if you're picking your studies based on your decision.
Again, the science is so sketchy that just doing what works for you makes sense, but it's not a good idea to pretend that you're doing it because of the science.
FWIW that's not a healthy diet. A vegan diet (assuming you were vegan) needs a lot of variety--carbs/grains, healthy fats, nuts, legumes, etc. You won't meet your daily caloric needs on lentils and vegetables.
I also ate 5+ bowls a day a day.
I just could not reach my calorie requirements.
I did exercise everyday by going up the nearby mountain. Adding protien powder to my meals helped, but adding meat made it very easy to substantially increase my calorie intake.
Which studies are those?
Often it's one industry or another paying a tame scientist to p-hack their way to a forgone conclusion; https://www.npr.org/sections/thetwo-way/2016/09/13/493739074...