Basil Tomatoes

Ingredients

• 1 Tbsp. red wine vinegar
• 2 tsp. dijon mustard
• 1/2 tsp. each -salt, dried oregano and lemon juice
• 1/4 tsp. white pepper
• 1 clove garlic, minced or pressed
• 1 1/2 tsp. olive oil
• 3 Tbsp. salad oil
• 3 medium tomatoes, peeled and sliced lengthwise
• butter lettuce
• red onion, sliced, if desired