Rinse and dry the roast pork. Season all sides with salt, pepper, and 2 teaspoons Provence herbs.
Place on a deep baking sheet and roast at 220°C (428°F) for 60 minutes.
While the pork roasts, clean and chop: 1 green pepper, 1 red pepper, 1 eggplant, 2 zucchini, 4 tomatoes, 2 onions, 1 bunch soup vegetables (leek, celery, carrot), 2 cloves garlic, and 1 kg small potatoes.
After 60 minutes, arrange the chopped vegetables and potatoes around the roast. Season with salt, pepper, and 1 teaspoon Provence herbs.
Roast for 90 more minutes at 220°C (428°F) until the pork reaches 63°C (145°F) internally. Stir the vegetables 2-3 times during this period.