And yes, I'm constantly deciding between different amounts of meat I can eat, it usually depends on how hungry I am.
I decide the amounts, what meat protein, then pick veggies that go with it, and add a small amount of carbs.
In terms of overall utilitarian impact, I mean. Not in terms of some moral systems.
I think people around here would charge too much to go vegan.
It might be cheaper use people on the West Coast.
In the grand scheme of things, Americans are very expensive people. For example, Argentinians both eat a lot of meat, and are currently in dire need for some hard currency.
I don't know if there's an app for this. However, you could do the next best thing and find a charity that works on promoting eating-less-meat in Argentina.
(Argentina is just an example, I have no clue whether it's the best value for money for this very specific. I'm just fairly sure that they are better value for money than spending money in the US.)
https://blog.givewell.org/2010/12/27/animal-welfare-charitie... might be an interesting read.
> But we don't eat out, that's more wasteful and expensive than anything else. fires up the grill
That might be true for you. But there are also people who eg want to eat stuff from the grill perhaps once a year, and storing their own idle grill the other 364 days would be wasteful.