It does take some getting used to but once it clicks then you will be sorted.
On EE days you can have as much of the the food that would be free on green and on red days as you want. So you can have as much pasta, pots, rice as you want and as much meat as you want. You do have to sacrifice 2 Healthy extras tho so on an EE you can only have 1 HeA and 1 HeB. You also need to ensure that each meal has a 3rd superfree food with it.
I'll use a boring example. You could have chicken, chips and veg because chicken is free on a red, pots are free on a green and you would need to make sure the veg was a 3rd of your plate.
Hope thats helps a bit but i am a bit crap at explaining things xxx