You’re gonna need to eat well over ten pounds of broccoli and carrots to get a full days calories. This is going to be something most are going to see more as supplemental, or as means to dip.

Beans and rice are well and good but they’re not actually very nutrient dense. I know people who QUIT rice due to concerns that a bowl of rice raises blood sugar. In fact a lot of the foods you suggested are fairly high in sugar. I’ve known others who quit beans because they’re notoriously harsh on digestion.

When poor it’s hard to get sufficient nutrients or avoid excessive carbs and sugars, and you don’t have the luxury of playing around with things like speciality diets because you just can’t afford to.