Summer squash chili con carne

Ingredients

• 700 gram ground beef
• 700 gram passata
• 1 large or 2 small eggplants
• 1 small zucchini
• 1 summer squash (white bush zucchini)
• 1 bell pepper (color of your choice)
• 1 large onion
• 6 garlic cloves
• 1 large can of red kidney beans
• 1 tablespoon ground paprika
• 1 tablespoon ground cumin
• 1 tablespoon cacao powder
• 1 teaspoon ground chili (depending how spicy you'll like your chili)
• olive oil
• pepper and salt to taste
• 3 beef stock cubes
• 2 tablespoons tomato paste
• 2 green onions
• 200 gram crème fraîche
• optional: rice for serving