I think the key is the method of cooking the tofu. You really have to dry it out good, otherwise it gets all soggy. The sprinkling of cornstarch also helps to give it a little crunch without frying it.

ingredients
1 package (12.3oz) extra firm tofu
1 T cornstarch
8 oz flat uncooked rice noodles
2 T tamarind concentrate (or strained tamarind paste)**
2 T rice wine vinegar
3 T sugar
4 T reduced sodium soy sauce*
2 T fish sauce*
1-2 T Sriracha (or less, if you're a wuss)
1 1/2 t fresh grated ginger
2 T peanut oil, divided (unrefined if you have it)
2 eggs, lightly beaten
1 egg white, lightly beaten
1 cup fresh bean sprouts, optional
1/2 cup carrots, matchstick, optional
1/2 cup chopped green onions
2 T chopped cilantro
2 T unsalted, dry roasted, peanuts, chopped
4 lime wedges

instructions
1. Drain tofu. I start this the night before by taking it out of the tray and sitting it on top of a dish towel in a round cake pan. I cover the tofu with another dish towel and put another cake pan upside down, and then i put something really heavy on top and put it in the fridge. If the towels are soaked, I do another round before cooking. You could easily do this for 30 min to 1 hour before cooking, but if it's not drained it will lead to that soggy texture. After it's drained, cut into 1/2 inch cubes and toss in bowl with cornstarch. Set aside.

2. Prepare noodles according to package directions, without salt. Drain and set aside. (If you make these first, I'd rinse them with cold water after cooking stop the cooking once you take them out of the boiling water - otherwise they will overcook while sitting in the strainer - you re-warm them in the skillet anyway)

3. Combine tamarind through ginger in small bowl. Heat 1 T oil in non-stick skillet over med-hi. Add tofu and saute for about 7 minutes, until golden. Remove from pan and set aside.

4. Heat 1 t oil in pan. Add eggs and egg white; cook for about 30 seconds, stirring constantly. Removed and add to bowl w/ tofu.

5. Heat remaining 2 t oil. Add noodles and cook for ~3 minutes. Stir in liquid mixture; cook ~30 seconds. Add egg and tofu back in along with bean threads and cook for about 1 minute. Remove pan from heat. Stir in onions and cilantro.

6. Divide among 4 plates, top with lemon wedge and crushed peanuts.

*If you need a gluten-free version, buy Thai Kitchen brand. The Tamari brand at Whole Foods also advertises a gluten-free soy sauce that can also be purchased low-sodium.

**Tamarind is hard to find. Sorry. I buy tamarind concentrate from The Chopping Block in Chicago or the Spice House. EvenAmazon.com. You can instead buy a block of tamarind paste at asian markets. Put a chunk in boiling water and let it soak for a while, then drain and you'll have concentrate.