Radish-And-Avocado Salad

Ingredients:
- 2 tablespoons fresh lemon juice
- 2 tablespoons olive oil
- 1 teaspoon country-style Dijon mustard
- 1 garlic clove, minced
- Salt
- Freshly ground black pepper
- 8 cups torn red or green leaf lettuce
- 4 radishes, thinly sliced
- 1 avocado, sliced

Directions:
- Whisk together first 4 ingredients and salt and pepper to taste; toss with remaining ingredients.