Salade Nicoise Recipe - French Salad with Tempeh, Eggs, and Avocado

Ingredients

• 2 red onions , thinly sliced
• 2 stalks celery , sliced
• 5 tbsp olive oil
• 0.25 cup minced fresh flat-leaf parsley
• 3 cloves garlic , minced
• 2 tbsp minced fresh basil
• 1 to 2 tbsp red wine vinegar
• 0.25 tsp dried oregano
• 0.25 to 0.5 cup good-quality black olives , whole or pitted
• 5 small new potatoes , quartered
• 2 cup string beans, sliced into 1 inch pieces
• 2 cup wax beans , sliced into 1 inch pieces
• Red leaf, radicchio or boston lettuce