Turn oven on to 400 degrees F. On a cookie sheet lay the flatbread. Drizzle with olive oil; rub into each piece. Sprinkle with sea salt. Bake for 4 minutes; flip over. Bake additional 4 minutes.
Remove from the oven. Spread on each flatbread 1 heaping tablespoon of pizza sauce. Sprinkle with cheese. Divide evenly the ham, pineapple, and red onion on each flatbread.
Cook for about 6 minutes, or until cheese is melted. Garnish with fresh parsley; serve immediately!