set the oven to 180C 350F or gas mark 4, wash the potatoes, prick the potatoes, place in the microwave, cook for 8 minutes, place in the oven for 10 minutes
wash the cherry tomatoes, place the cherry tomatoes in an oven proof dish with a spot of olive oil, add the thyme, bake for 8 to 10 mins
wash and slice the mushrooms, peel and chop the onion(s) finely, peel and crush the garlic using the garlic crusher or chop finely, heat the frying pan, add the butter, add the onion and garlic to the frying pan, cook until soft
add the mushrooms to the frying pan, cook for 3 to 4 mins, cook until golden brown, add the spinach, cook the spinach until it wilts if using fresh if using frozen just heat through
add the creme fraiche to the frying pan, cook for a minute or two, add the mustard, cook for a minute or two, season with salt and pepper, set a side
remove the tomatoes from the oven, mix the balsamic vinegar with the remaining oil, add to the tomatoes, return to the oven, cook for 2 to 3 minutes
remove the potatoes from the oven, cut the potato in half, add some butter, season with salt and pepper
add the spinach and mushroom to the jacket potato
remove the tomatoes from the oven, place the tomatoes on the plate
add the jacket potato to the serving dish