Wriring Challaenge, June 2nd

That'is is a very tough question to answer (because I love food), but for the purposes of this exercise, I'll have to make up my mind.

Your original phrasing wasn't necessarily incorrect, but you would say 'That's a very tough question to answer' if someone had asked you directly in conversation. When responding in this case (ie. a written essay), it makes more sense to write 'This is a very tough question to answer', although both make sense grammatically.

I come from Iran, so if I'm about had to choose a Persian food, I would go for a very delicious dish that is made with eggplants called eggplant stew.

Depending on one's taste, the ingredients and the preparation might be slightly different, like (for example, omitting the meat or garlic,) but it's usually made using eggplants, tomato, onions, meat, garlic, and spices like saffron.

This is more stylistic feedback, but here, the comment about omitting the meat or garlic is an example of an alteration based on one's taste, so it makes more sense to be in parentheses (brackets). In spoken English though, saying 'like' would be perfectly fine.

Also, I removed the comma after garlic, but you can technically leave it in if you want - it's called the Oxford comma, and looks weird to me as an Australian, but is a perfectly acceptable use of a comma elsewhere in the world :)

Just in case you're interested, here's a link to thsome images of that yummy Persian food I talked/wrote about:

You would only say 'the images' here if you had already referred to these specific images above (eg. if you had already mentioned them earlier).