how big is a 'bag' of rice?
that doesn't sound too good....why not just keep a couple servings of beef in one dish and some pasta/rice/potato in another and nuke em when you're hungry?
my fave is a frozen shrimp and scallop bowl from M&M's...then i add 100-150 grams of prawns or scallops
gives me roughly 40-45g protein, 35g of carbs and less than 10g of fat. ready in minutes and tastes pretty good too