Cut the eggplant, zucchini, tomato, onion, and bell pepper into bite-sized pieces.
Heat olive oil in a pan and sauté minced garlic.
Add onions and cook until they become translucent.
Add the remaining vegetables, season with salt and pepper, and sauté together.
Pour in the tomato sauce and simmer over low heat until the ingredients are cooked through.
Finish with parsley or basil and serve in a bowl.