Mexican Calabacitas

This is another healthy (and tasty) Mexican side dish.

5 medium size zucchini or yellow squash (or a mix), peeled and diced
1 can sweet corn, drained
1 onion, chopped
1 can ro-tel tomatoes
2 cloves garlic, finely chopped
olive oil

Heat oil in large skillet over medium heat. Add garlic, zucchini, and onions. Cook until the onion is tender, and then add the corn and tomatoes. Cover the skillet, reduce the heat, and simmer for 15 minutes stirring occasionally.