Bring a pot of water to a boil. Once boiling add the soba noodles and cook according the package instructions. Drain, rinse well and set aside.
Heat a wok or large skillet over medium high heat with avocado oil. Add the fresno chilis, garlic, snow peas, carrots and ginger powder. Sautee, stirring, until snow peas are slightly charred and tender, about 3-4 minutes.
Add the soba noodles, coconut aminos and fresh lime juice. Continue cooking, stirring, until all flavors are combined, 3 to 4 minutes.
Remove the stir fry from the heat but cover to keep warm while you prepare the tuna steaks.