My wife and I enjoy drip coffee, french pressed coffee, espresso, black tea, green tea, and just about anything caffeinated.  However, my wife wants to avoid caffeine due to its physiological effects. Unfortunately, in her words, decaf espresso "tastes horrible," and I agree.  I have similar feelings against decaf black tea.  Is there anything with a bitter flavor similar to caffeine that could add some of the punch back to decaffeinated coffee or tea? 
The answer is that it depends.  Is the recipe for the stovetop or for an oven?  If it is for an oven, make sure that your pan is oven safe to the appropriate temperature.  While your recipe will likely work fine with a normal pan, it won't develop the same kind of crispy exterior that it might with cast iron. 