OK, this is where I must remind you that I don’t eat like this every day. Honest!
Now that I have that out of the way — this is an odd item on the Denny’s menu. Take deep fried mozzarella sticks, add cheddar cheese, and THEN make a grilled cheese sandwich out of it. Are your arteries whimpering for mercy yet? They serve it with some tomato sauce on the side, which undoubtedly make it healthier on the whole.
Oh, and for a modest charge you can add a side of French fries, in case you still needed more salt, fat, and carbs.