Broccoli Salad

1 head broccoli (cut into small pieces)
4 hard-boiled eggs (chopped)
1 basket cherry tomatoes
1/2 green pepper chopped 
1/2 c green olives 
1/2 c chopped onions 
1/2 c mayonnaise
1/4 c plain yogurt

Squeeze fresh lemon juice over all. Chill overnight.