Well, possible troll, you would need to get enzymes from somewhere to break up the barley and wheat flour starches into sugars useable by the yeast. And even if you did that, this would probably be pretty terrible. Too much salt, for starters. Might be interesting to try to make, say, a quart of it for curiosities' sake. In that case, try mashing the cereal with a handful of American 6-row pale malt, see what happens.
But seriously, if you're really that hard up and want to make beer, it would probably be more economical to just get a can of hopped malt extract or some amber DME, and a packet of dry ale yeast. You can make a wort of about 1.045 OG if you use one pound per gallon, and a pound costs about three dollars. This will yield about ten bottles of beer with 4.5% ABV, at about 30 cents each. A packet of yeast costs a dollar or two, and can start up five gallons. And it will probably be drinkable.