Pork with sauce from red wine, mushrooms, and mustard

Ingredients for 4:

4 pork fillets
0.5 lb sliced mushrooms
2 tbsp flour
0.5 cup red wine
2 tbsp mustard
1 tbsp vegetable oil
1 tbsp butter
1 cup vegetable broth
Salt, pepper on taste

Method:

Pre-heat a skillet with vegetable oil and butter, put fillets on it, and fry until golden crust forms on both sides (2-3 minutes per side).
Add sliced mushrooms, and set to low heating. Add flour, and cook for 2 minutes, then add wine and mustard, and bring to boil.
Add vegetable broth and mix carefully, to get sauce.
Add spices, and simmer until ready. Serve with vegetables, or pasta, rice, or buckwheat.