Leafless Salad Nicoise - cooking recipe

Ingredients

8 radishes, quartered
2 large carrots, shredded
2 celery ribs, diced
1/2 sweet red pepper, diced
1/2 cup fresh mushrooms, chopped
2 -3 hard-boiled eggs, sliced
1 (170 g) can tuna in water, drained
1/2 cup snow peas (optional)
1/2 cup fresh green beans (optional)
1 tablespoon Dijon mustard
2 tablespoons lemon juice
1/4 teaspoon salt
1/4 teaspoon pepper
1 tablespoon olive oil

Preparation

Choose vegetables that you like, the more colourful the better. All I have given are optional.
Arrange vegetables and tuna (half a can each) so that they look nice on individual plates or a platter.
Combine ingredients for dressing in screw top jar and shake well. Serve over salad.