Bobbyland - tomato & cucumber salad

Ingredients

• 2 tbsp. vegetable oil
• 1/2 tsp. salt
• 1/4 tsp. pepper
• 1 tbsp. vinegar
• 1 tbsp. sugar
• 1 tsp. minced parsley
• 1 med. cucumber, peeled and thinly sliced
• 2 med. tomatoes, sliced
• 1 lg. onion, sliced and separated into rings