Adding rice might get you close to that for the amount of rice you eat, but 1 cup of beans will get you 16g of protein and 1 cup of rice will get you 4g of protein.
So a chunk of your protein intake would still be incomplete. It's not like the ratios are perfect so that a cup of each gets you 20g of PDCAAS 1.0 protein. Doing some quick napkin math looking at the AA makeup and protein digestibility of the two, it's like 14g equivalent of PDCAAS 1.0 protein.
~25% is a pretty significant gap if you're trying to hit optimal levels for things like muscle growth, etc.
So a chunk of your protein intake would still be incomplete. It's not like the ratios are perfect so that a cup of each gets you 20g of PDCAAS 1.0 protein. Doing some quick napkin math looking at the AA makeup and protein digestibility of the two, it's like 14g equivalent of PDCAAS 1.0 protein.
~25% is a pretty significant gap if you're trying to hit optimal levels for things like muscle growth, etc.