Dice onion and add it to a frying pan along with the oil. Saute onion for about 5 minutes over medium heat, stirring occasionally.

Add grated fresh ginger to pan.

Chop the carrot and dice half a mango and add these to the pan. Lower the stove temperature if veggies are catching. Also, make sure to give veggies a good stir. 

As veggies are sauteing and getting tender (about 3-4 minutes), microwave Soba Buckwheat Noodles according to package directions. Then add the Soba Buckwheat Noodles into the pan with the veggies.

In a bowl, mix the water and the shoyu flavoring package that is enclosed with the Soba Buckwheat Noodles and stir well. Then add this into the pan, and make sure to coat the noodles and veggies with this flavoring, using a pair of tongs so its easier to mix the noodles. Remove from heat.

Dice the avocado half and toss it in with the noodles. Aldo add in the sesame seeds. Serve warm - though leftovers are just as delicious cold!