Hearty Beef Liver Stir Fry

3 cupswater

2 teaspoonsinstant beef bouillon granules

1-1/2 teaspoonssalt

1/2 teaspoonpepper

4 sprigsparsley

Celery leaves from 3 ribs

2 bay leaves

2 clovesgarlic, halved

4 sprigsfresh thyme

2 cupschopped, peeled tomatoes

1-1/2 cupspeeled sweet potatoes cut into 3/4-inch cubes

1 cupparsnips cut into 1/2-inch pieces

1 cupsliced carrot

1 cupsliced celery

2 cupsfresh pea pods, halved crosswise