Well, make sure you do your research, because you don’t want to infringe on any sammich intellectual property. For example, the Crispy Chip Sandwich Product is taken:
This is real.
Dude! I totally thought of that in 1997!
I’ve highlighted some key claims below, which were my ideas, of course.
I claim:
1. A sandwich product comprising:
two bread portions including one of (i) two slices of bread, and (ii) two mating bun parts;
a meat portion disposed between the bread portions; and
a substantially flat, crispy chip garnish disposed between the meat portion and one of said bread portions, the crispy chip garnish being characterized as sized and shaped to substantially extend to the perimeter of said bread portions.
2. The sandwich product as defined in claim 1 in which the crispy chip garnish is made from one of (i) potato-based composition and (ii) corn-based composition.
3. The sandwich product as defined in claim 2 in which the crispy chip garnish includes a flavor selected from the group consisting of cheese, nacho cheese, onion, smoke, salsa, sour cream, chili, barbeque, smoke, tomato, pickle, bacon, horseradish, pepper, honey, lemon, garlic, parmesan, butter, malt and vinegar.
Piggy Goes To Market 
As a preteen, I invented the strawberry fruit-rollup + nacho cheese Doritos + mustard sandwich. I neglected to patent it though, citing cost to benefit concerns. I wonder if it’s too late? Seems like everything is already invented now. Piggy, could you get your patent searching team on that please? I smell cash cow. Thanks!