In a skillet over medium to medium-high heat, add the butter and diced squash, onion, and carrots.
Let the veggies cook for a few minutes until slightly soft (about 5 minutes) and add in the ground chicken. Season with a pinch of salt (not too much since the soy sauce will be pretty salty) and pepper. Crumble the chicken while it's cooking and cook until browned.
Add in the soy sauce and honey and stir to combine. Reduce the heat and allow to simmer until reduced and thickened slightly.
While the chicken mixture is reducing, cook the grain pouch in the microwave.
To serve, add a spoonful of grains to the lettuce leaves and then a spoonful of the chicken mixture. Eat like a taco!