MT,
I'm just looking out for you buddy ;)

Let's start with the positives.
Fish and potatoes are two of the healthiest things you can eat.
The other things are the issue.

Your on the right track. Baked low salt chips are lower in fat. Considering that the Parmesan cheese has salt, plus the garlic salt and bacon in the baked potato, your getting a lot of salt and saturated fat in one meal.

I'd give the baked/low salt chips a try at first.
If your really willing to try something, use crushed corn flakes or tater buds seasoned with a good no salt seasoning. This should give you the crunch your looking for. The softer the cheese, the more fat. Buying a premium Parmesan in a chunk, and shredding/grating yourself, is better than the pre-shredded in the plastic bags. A way to cut back on cheese is to go for flavor over quantity. A good Romano cheese is very flavorful but you can use way less. Works the same in healthy homemade pizza.
I'll give you your butter with lemon for your fish dip, but let's do something about your baked potato.

Instead of butter on baked potato, drizzle with some good olive oil.
Instead of garlic salt, roast some garlic cloves and squeeze the garlic out on one side before you top with onion. Bacon has plenty of salt, but
If you poke a few holes in foil, and bake on a raised rack, the bacon will crisp up and the excess fat will run out.

You can always add a little SEA salt if you need it or a good Mrs Dash type salt free seasoning if you think it's to bland. Remember, it's easier to add more salt, than take it out ;)

These changes alone will make you recipe a lot healthier and I doubt anyone will no it's " healthy". The secret of cooking healthy food is adding more spices to make up for the fat, which carries flavor. I also recommend NEVER telling anyone your making a low-fat/healthy dish :-X
It just raises mental barriers. Once there smacking their lips and asking for the recipe, you can drop the low fat/healthy bomb, by then they've bought into the idea that good taste and healthy don't have to be mutually exclusive ;)