I have currently being training for about 2 years now and have put on roughly about 18kg throughout this period.
Height 193cm
Weight 95kg
I use to be very skinny and naturally don't carry a huge amount of fat, but have increased my food in take quite a bit as my body demands it. One thing i am finding hard is maintaining eating the right things constantly. Currently i eat the following:

7am - 2 pints of protein smoothie - (whey - ( 4 scoops))

9:30am - Oats or Muesli or Omlete (1 yolk - 3 egg whites)

11am - one tin of tuna

1:30pm - Chicken Pasta or Rice + Rice

2:30pm - Nuts / Fruit

4pm - Tin of tuna

5:30 - more fruit and nuts

6pm - Workout

7pm - post workout protein shake

9pm - main meal, chicken rice or pasta or turkey / fish

10:30pm - cottage cheese with pineapple

Monday: BACK
3 x 10 seated rows
3 x 15 wide grip pull up
3 x 10 close grip pull up
3 x 8 lat pull down
3 x 8 close grip pull down
3 x 8 barbell row
30 minute rowing

Tuesday: Rest

Wednesday: LEGS
4 x 8 squats
4 x 8 calf raises
3 x 10 leg extension
3 x 10 reverse leg extension

Thursday: Chest
4 x 5-10 bench press
4 x 5 - 10 raised bench press
3 x 5 - 10 cable flies
3 x 15 - 20 low weight machine press to exhaustion
30 minute rowing

Friday: Day off

Saturday: 45 minute Stomach + 10km Jog

Sunday: Arms
4 x 5 - 10 dumbell curls
4 x 5 - 10 hammer curls
4 x 5 - 10 tricep extensions
4 x 5 - 10 dips
4 x 15 - 20 tricep extensions to exhaustion
4 x 15 - 20 dumbell curls to exhaustion

(I also mix in swimming from time to time after a workout)

One thing i did notice with this diet is that i have started to put on weight, which is a bit frustrating as i wanted to avoid putting any fat on. I do want to start cutting but i don't feel i am the size i want to be to do so. The question is, when people are putting their weight on during each phase, how much of this ends up being fat? Is weight really an accurate depiction of progression and muscle growth?

I have started adding more cardio into my routine, but i did read in some case studies when testing products, than some people actually depreciate in lean tissue with increased cardio, one thing i don't want to do is end up losing muscle through cardio but it's getting the balance right for reducing fat slowly (not cutting), but maintaining muscle growth. I did look at beta-ecdysterone, but despite all the hype people on here who have used it have said it didn't do anything. Any advice on revised diet / workout would be good.

I was also wondering if anybody had any other alternatives to eating tins of tuna all the time as i am really getting sick of the stuff now