In a shallow dish combine the olive and vegetable oils, mustard, vinegar, parsley and garlic. Season to taste with salt and pepper. Slice the chicken breasts in half, horizontally so you are left with pieces, about 3/8 inch thick. Marinate the chicken in the mustard mixture in the shallow dish, for as long as possible
Dip the chicken in almonds and saute in butter for about 5 minutes a side or until just cooked through.