Osechi consists of dishes which is shown below which have auspicious meanings and we celebrate the new year's day by eating the dishes.
from above left
1 chestnut boiled with syrup. The golden color of the chestnut is associated with economic fortune.
2 black soy beans, which represents wish for health.
3 bamboo-shoots boiled with broth. Growth of bamboo-shoots upward to the sky is associated with well growth in many fields like business.
4 carrots boiled with bamboo shoots in broth. Red color of carrots is seen as auspicious color.
5 boiled arrowheads. The sprouts coming out of them is associated with growth.
6 vinegar-pickled renkons or lotus roots. Renkons have many holes which you can "see through" the other side, which literarily means seeing or predict what will happen in the future.
7 sardines cooked in say sauce. In ancient days in Japan sardine was used as a fertilizer for rice so the fish are associated with a good harvest.
8 giant butterburs boiled in say sauce and broth. Butterburs in Japanese is homonym of wealth or good fortune in Japanese.
While preparing miso soup for zoni we baked mochis with an oven toaster.
Mochi get sticky and bigger when cooked so we sometimes have a trouble in picking them up if mochis combine with others as you see in a photo shown below.
It's interesting to know that different kinds of zoni soup are preferred in different districts in Japan. In Osaka white miso soup is preferred, which is sweet and mild taste while in Tokyo fish broth.