Cut zuchini and eggplant and/or yellow squash into 1-inch chunks. Cut asparagus into 1 inch lengths. Cut red bell pepper into 1-inch chunks as well. Heat olive oil and garlic in large pan until garlic starts to soften. Add chopped vegetables. Cook about 5 minutes. Add diced tomato with juice, oregano, crushed red pepper (about 1/8 teaspoon or to taste). Bring to boil. Reduce heat and simmer about 15 minutes or till veggies are done to your liking. Add salt and pepper to taste. Serve as a side dish, or serve over rice as a main dish.