The Chili/e: if you enjoy a little kick, a nice warming full-bodied chile powder such as ancho would work well here (cayenne powder would be too hot for my taste). Chipotle might be another to experiment with. Generic "chili powder" found in the grocery store is a spice blend (typically made from a mix of mild chile, onion, salt and herbs) without much bite.
The Tofu: I haven't always liked the texture of tofu - in fact my early experiments with the drab slab were downright gag-worthy. Things turned around for me when I had something called "brother-in-law tofu" at an Indian restaurant a decade ago; it was a seared tofu much like this one. Searing doesn't crisp up the tofu like a golden potato but it does give it a nice crust that contrasts with the soft interior - when combined with savory spices, it's actually a pretty pleasant experience and a good plant based protein option. But like all things, it may take some getting used to.
Watch the Amount of Spice!: I've made this recipe numerous times and find a modest sprinkling of spice works best - adding too much spice just causes it to bunch up (glob) on the tofu and prevents the skin of the tofu from properly adhering to the oil surface of the pan (no sear for you!).
Straight from the Skillet: the seared tofu tastes best right from the skillet - this is not one that ages particularly well. So I recommend having all of your other meal ingredients ready to go (salad/grains/greens whatever they may be) and just add the tofu and enjoy.
What's the deal with Turmeric? turmeric's active (and best studied) ingredient, curcumin, is known for its antioxidant/anti-inflammatory properties which may offer protection against various forms of disease. Before turmeric started appearing in popsicle and brownie recipes over the last few years (health rage), it was more commonly known as a staple spice in Indian cuisine.
Turmeric Stains! Turmeric has a long history of use as a dye - this spice has some serious staying power. Just a little warning to mop up surfaces quickly if you encounter unwanted spills, etc. and it might be best not to wear your white silk blouse when prepping this particular meal ;o