Crumble bacon and set aside. Slice potatoes into 1 1/2 quart casserole dish; add onion and water. Cover and microwave on high for 12-14 minutes, stirring halfway through cooking time. Drain.
Combine remaining ingredients. Add to potatoes, mix lightly to combine. Sprinkle bacon over top. Microwave on high 1 1/2 to 2 minutes to heat through. Serves 4.