I cooked this in a wok but you could use a heavy big pan.
Put pan on medium-high fire.
Let it get hot.
Coat the bottom with a little sesame oil.
Sauté onions
Open cans, drain one, keep the liquid from the other.
Take a few beans and mash with a fork (about 2 Tablespoons of 'em) til creamy.
When onions are translucent, add beans, mashed beans, and juice from 1 can.
Cook for a couple minutes, add szechuan sauce (taste first! it could be too Hot or too mild for you I used 3 teaspoons)
Mince/crush garlic cloves, but only add them after you turn off the fire.
Mix into beans, cover, let sit a few minutes. The hot beans will cook the garlic but most of the flavor will still be there
Serve over rice.