Cook rice in boiling salted water according to package instructions. Add peas briefly. Clean and peel the kohlrabi, cover and cook in about 1 l boiling salted water for about 20 minutes. Clean, wash and chop the peppers. Wash and halve the tomatoes. Peel and finely chop the onion.
Pour off the kohlrabi, collect the stock and measure out approx. 1⁄4 l Drain rice. Heat oil in a pan. Fry the minced meat in it until crumbly. Fry onion and paprika briefly. Mix in tomatoes and rice.
Cut off a lid from each kohlrabi. Hollow out the kohlrabi, leaving a rim of about 1 cm. Chop the inside of the kohlrabi and add to the filling. Season to taste with salt and pepper. Put the kohlrabi in an ovenproof dish and fill with the rice mixture.
Bring the kohlrabi to the boil. Stir in cream cheese and stock, simmer for about 2 minutes. Season with salt and pepper and pour over the kohlrabi. Put the lid of the kohlrabi on top. Cover and cook in a hot oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer) for about 20 minutes. Cook open for about 10 minutes until done.