Heat sauce pan on the stove and add all ingredients. Cook on medium-high until brown sugar breaks down. Reduce heat to low and simmer until sauce thickens a bit.
Cook rice according to package directions.
Cube salmon and toss in a bowl with its dressing ingredients, cover with saran wrap and place in the fridge.
Peel, core and slice cucumber, shave or julienne the carrots, chop the green onions, and slice the avocado.
Split all ingredients evenly between two bowls, drizzle sauce overtop and serve.