Mexican cuisine is a favorite at hour house. I would venture to say that we eat it 3 or 4 times a month. I like the fact that it's easy, versatile and can be made as a beef, chicken or vegearian dish not to mention the fact that I know it will be eaten without complaint.
Given the amount of taco seasoning we can go through in a months time, I find it easier to make it in bulk than to purchase the seasoning envelopes of it at the grocery store. I haven't calculated the cost but I bet it's cheaper to make my own. Making my own also allows me to know exactly what's in it.
Here's my mix (adapted from The Ultimate Southern Living Cookbook):
3 T. chili powder
1 T. salt
1 T. garlic powder
1 1/2 tsp. black pepper
3/4 tsp. ground red pepper
1/2 tsp. cumin
Mix together and store in an airtight container up to 1 month.
To use for tacos, add 2 to 3 tsp. of seasoning to browned ground beef and 3/4 c. water. Cook over medium heat for 3-5 minutes or until most of the liquid is absorbed. Also works well for seasoning chili.