The nutrition info does not include the optional dipping sauce.
Seasonings, especially salt, are guidelines. Adjust to taste.
To improve the okra's texture and remove its slime, you should roast it at very high heat, so set your oven to 450°F. In many recipes, you can play a little with the oven temperature, but here, I highly recommend sticking with a truly hot oven.
If you prefer an oil with a high smoke point, use avocado oil.
You can keep the leftovers in an airtight container in the fridge for 3-4 days. Reheat them uncovered in a 350°F oven. They are also delicious when served cold, antipasti style.