So true. I find myself making Mexican or Tex-Mex often because it's flavorful and fast. javabytes - you'll likely get faster each time you make it, the first time I make anything always takes longer. Instead of marinating the meats, try a rub instead (chili powder, cumin, garlic powder, salt, pepper is a simple one that works well on beef or chicken, not quite as good on pork but still works). I will often make that rub, with some variation, and store in my kitchen to have it handy. And buy a good quality salsa as another shortcut. I like several of the Frontera salsas, if you have them available.

All that said, there are no shortcuts for good guacamole!