Broccoli Raab With Garlic and Tomatoes

Ingredients

• 1 tbsp lemon juice
• 2 tbsp extra-virgin olive oil
• 1/2 cup chopped onion
• 1 medium tomato (diced)
• 1/2 tsp salt (or to taste)
• 1 clove garlic (crushed and minced)
• 1 bunch broccoli raab
• 1/8 tsp fresh ground black pepper (or to taste)