3/4 lb. sugar-snap peas
1/2 lb. mushrooms
1 tbsp. butter
1 tbsp. oil
Salt and pepper
1 lemon

String the sugar-snap peas. Cook them in boiling, salted water until tender, about 5 minutes, and drain. Slice the mushrooms. Heat the butter and oil in a large frying pan over medium high heat. Add the mushrooms and cook, stirring occasionally, until they're soft and the liquid has evaporated, 10 to 12 minutes. Add peas, 1/2 teaspoon salt, and 1/2 teaspoon pepper and heat through, 2 or 3 minutes. Squeeze 2 teaspoons juice from the lemon. Add the juice right before serving.