Have you ever tried Roasted Plantain Chips? They are delicious and a great source of potassium and dietary fiber. I stock up on plantain chips when I go to Trader Joe's - It's $1.69 for a 6oz bag and there are (supposedly) 6 servings in a bag. My husband and kids LOVE them (as do I).
I like to spice them up with some guacamole - why not get potassium, fiber, vitamins B, E, and K, all in one snack? I don't make super fancy guacamole, but what I do make is sure satisfying and doesn't require anything not usually stocked in my kitchen! My youngest daughter absolutely refuses to eat avocado served any other way - she LOVES my guacamole (shhh, don't tell her it's avocado she's eating!).
Simply Delicious Guacamole:
salt & pepper to taste
1-2 garlic cloves minced
Halve and peel your avocado, place in a bowl. Squeeze half a lemon onto your avocado, grind some salt and pepper on, throw a pinch of cayenne pepper in to suit your spicy craving, drop the garlic in, and mash it all together.