Cut the onion and peppers into cubes. Sweat both in a little oil in a pan, deglaze with vegetable stock. Let simmer for about 10 minutes. Then add the cream and diced tofu and simmer until the peppers are soft and the sauce has thickened a little. Just before the end, heat the peas and carrots. Season with salt and pepper, sprinkle with chopped herbs if necessary and serve with rice.