Wash and quarter the red potatoes. Peel if you like. I didn't. Boil for about 10-15 minutes. Drain, mash and mix with milk, butter and some seasonings. However you like your mashed taters.
Brown the ground beef. Drain the fat and return to skillet. Add the chopped red onion, diced tomatoes with juices, tomato paste plus about 1/2 cans worth of water. Stir in the flour and paprika. Season with salt and pepper. Let simmer about 10 minutes.
Saute the zucchini slices in the olive oil over medium heat for about 3-4 minutes per side. Season with a little salt and pepper.
Serve Goulash over Mashed Red Potatoes with sauteed zucchini (or other veggie).