Peel the broad beans. Cook the seeds in boiling salted water for about 20 minutes. Peel and finely dice onion. Put kidney and white beans in a sieve and rinse. Pour the thick bean seeds into a sieve and rinse with cold water. Heat oil in a pan and fry onion until translucent. Add the prepared beans and braise for about 5 minutes while turning, season with salt and pepper.
Peel the garlic and press it through a garlic press. Mix crème fraîche, milk and garlic, season with salt and pepper. Cut meat into cubes. Mix chips, meat and beans and fill into a greased casserole dish. Spread dip over it, sprinkle with cheese. Bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 10 minutes. Garnish with chilli pepper and thyme