Help with lightening up this recipe

I found a link to a recipe for OMG Almond Joy Protein bars:
http://www.healthcentral.com/obesity/c/276918/135720/loss-ma intenance 

It looks delicious, has a really nice punch of protein and very little carbs when compared to a lot of other bars.  Unfortunately, its really heavy in calories and (to me) fat. 

What are some ways that I can lighten up some of the ingredients?  Because there's no real cooking/baking involved, are my options very limited on trimming this down a bit?  Thanks!

Nutrition information:
273 calories, 18 grams protein, 8 grams carbohydrates, and 21 grams fat per bar

Ingredients

• 1 square unsweetened Baker's chocolate
• 2 Tbls. Butter
• 2 Tbls. heavy cream
• 3 packets of Stevia*
• 3 scoops Syntrax Nectar Protein Powder Chocolate Truffle
• 1 c. chopped raw almonds
• 1/2 c. unsweetened shredded coconu
• 2 Tbls. Sugar-free DaVinci almond syrup (or SF vanilla, or SF coconut)

 Directions

1. Place chocolate and butter in a microwave-safe dish and microwave 1 min. Do not overheat! Remove from oven and stir until completely melted.
2. Add Stevia and cream and stir until incorporated.
3. Add protein powder, almonds, coconut and stir well.
4. Add the syrup and mix thoroughly. The "dough" will become stiff and you may have to knead it with your hands.
5. Line a bread loaf pan with plastic wrap and press the mixture firmly and evenly into the bottom of the pan.
6. Chill until firm. Cut into 6 large bars. Keep refrigerated or store in zip-lock bags and freeze. 

looks like you need to subbstitute something for the butter and heavy cream. the almonds will have a lot of fat (although healthy fat) and calories, but raw almonds are very good for you. and i said, its heart healthy fat.

you would have to experiment, to get an acceptable consistancy and taste, but you might want to try plain greek yogurt to replace both. i would then microwave the chocolate alone, and mix the yogurt in after it is melted. fat free evaportated milk might also work.

if you substituted peanut butter for the butter, the calories would be the same, but you would get some added protein. of course it would effect the taste, but i would think it would still be good.

good luck!

Thanks Morriegrl!

I did some experimenting the other night and ended up adding 2 scoops of protein powder (I used Any Whey unflavored protein instead of Syntrax).  In addition, I used half the butter and almonds.  I also swapped (and slightly increased the amount of) skim milk for the heavy cream.

I got it down to 208 calories per 6 bars (18g protein, 13g fat, 4 net carbs). 
If I cut it into 8 bars, the calorie count goes down to 156 (14g protein, 10g fat, and 3 net carbs)!

The bars are sooo yummy!  My husband was BEGGING me to let him lick the bowl!