How much fruits and vegatables are needed to cancel out McDonalds and KFC every day?

So I found out that fast food can be delivered for a $10 fee in my town… and I admit I took advantage of the deal, but now I feel like I am saving money by walking by the scary part of town myself. So I would like to know how much good food should I buy each day to offset my fast food appetite, (I order a single hamburger with cheese from McDonalds then I walk half a block down the street and I go to KFC and I order a drumstick and a thigh and a small pop. Together It runs me $10 a day… exactly the $10 I would have spent on delivery, and I put that extra ten bucks a day into healthy food. I am currently spending $300 a month on fast food and that leaves $300 a month on healthy food.

I refuse to not eat fast food and I would like to know what healthy foods I can eat from Sobeys food store to balance out my food intake. Also Exercise is not on the list to things to do in the short run. I am 6’5” 280 lbs. and 35 years old and on disability.