Asparagus and White Bean Vinaigrette

Asparagus

1 pound(s), trimmed

Canned white beans

15½ oz, rinsed and drained, 1/4 cup set aside for vinaigrette

Olive oil

2 tsp(s), extra-virgin

Dijon mustard

2 tsp(s)

Red wine vinegar

1 tbsp(s)

Dried tarragon

¼ cup(s), leaves, packed

Fresh parsley

¼ cup(s), leaves, packed

Mineral water

2 tbsp(s)

Canned white beans

¼ cup(s), rinsed and drained

Table salt

⅛ tsp(s), or to taste

Black pepper

⅛ pinch(es), or to taste

Red bell pepper

½ medium, diced

Hard boiled egg

1 large, chopped