How do you make the marinated/pickled veggies that are at Taquerias?

I have made this. I think I found the recipe in a cookbook called "Cocina de la Familia."

I think I sliced the carrots into thick diagonal slices, sliced the onions, either sliced the peppers or left them whole but put a slash in them, put the veggies in a heatproof bowl, and then heated up some white vinegar till it was about boiling, and poured the vinegar over. Then I let it cool, and put it in the fridge.

That's how I would do it if I had no recipe and found myself craving those pickled carrots from the taqueria.

Hot Giardiniera

1 large yellow onion, sliced

1 large clove garlic, sliced thin

2 carrots, peeled and sliced diagonally

1 celery stalk, sliced diagonally

2 cups cauliflower, cut into small chunks

1/2 red pepper, quartered and sliced

1/4 cup banana peppers or other mild/hot peppers to taste

1 cup olive oil

2 teaspoons salt

1 teaspoon pepper

Combine everything and let marinate for 2 days in fridge.

Here you are:

http://www.recipezaar.com/143736