Chew your food very well and drink lots of water throughout the day. 
One of my wife's main arguments about not becoming vegan is the bloated feeling she feels after eating beans or complex carbohydrates like brown rice. I have let her know that if you eat more complex carbohydrates which include brown rice and fruits and little fat then the food will pass through your body quicker and you will be able to eat more calories without getting fat.
Still, the feeling of "bloated" is something I can understand. I eat a high carb lifestyle and I can't deny that sometimes I feel uncomfortable, but I just see it as a season of life and something to be dealt with and overcome.
Do you feel bloated too sometimes with your eating lifestyle? What makes you feel bloated? Any advice?[/QUOTg
Yeah, I do and it's really frustrating. I just try and mix up my meals so I'm not having the things that make me bloated all the time. Have you tried using pearl barley rather than rice? Or quinoa? That helps me. Also mixing it up with fresh fruit and veg. Rather than padding out meals with beans, how about chucking in an extra veggie rather than kidney beans etc? Maybe serve with potato instead of rice? Starting the day with a high fibre breakfast helps me. I use oatmilk instead of soy too.
Just some thoughts! Hope you manage to find a resolution!