I'm trying a [very simple beans-and-rice recipe](http://allrecipes.com/recipe/quick-black-beans-and-rice/), but I noticed it calls for instant brown rice, and I'm using regular.

The recipe has me cooking the rice within a quick sauce (tomato, black beans, seasoning), but I'm worried (albeit with no actual specific foundation) that the sauce might not work well under a much longer cooking time. Whereas stirring it in mid-cooking sounds like a Not Good Thing for rice.

Do I need to do anything special to make this substitution work?