You are a parent and this is how you write a business letter? I feel sorry for your kids and the example you are setting for them.

In the time it took you to go to nasty Taco Bell, you could have made your kids a couple of homemade quesadillas or some tacos. Delicious, and if good quality ingredients are used, nutritious too. You could even have the kids help you prepare them, and teach them a thing or two about cooking a decent meal.