The idea you need to balance your amino acid intake every meal is wrong.
If you are concerned though here are the 3 main types of protein vegans normally consume
Mixing any 2 of these will give you a complete combination of amino acids every meal.
Forc a few basic nutritional ideas you might want to start with this pdf here
or read this quick article
Also if you are serious about gaining size & losing bodyfat then think about adding a protein shake. Most meat-eating BBers have whey or casein, you can have soya, pea, hemp, rice or quite a few other plant based protein powders. They are a quick snack & really help bump up your protein intake