Heat olive oil in dutch oven over medium-high heat. Add onion and garlic. Cook about 3 minutes until onion is soft.
Add 2 teaspoons Herbs from Provence and 1 teaspoon salt.
Add eggplant, zucchini, and bell pepper. Cook for 5 minutes, stirring occasionally.
Add crushed tomatoes with their juices, the broth, and basil.
Bring to a boil and then reduce heat. Simmer for 20 minutes.
Preheat broiler for 5-10 minutes. Brush bread with olive oil and sprinkle with Herbs from Provence and salt. Broil until lightly toasted. Keep a close eye on bread as this will only take a couple minutes. Top with cheese and broil until cheese is melted.
Puree half of soup in blender. Return to pot and season with salt and pepper. Serve with cheesy french bread.