Shish Kabob

2 Tbsp olive oil
1/2 C chicken broth
1/4 C red wine
1 lemon, juice only
1 tsp chopped garlic
1/4 tsp salt
1/2 tsp rosemary
1/8 tsp black pepper
2 lb lean lamb, cut into 1-inch cubes
24 cherry tomatoes
24 mushrooms
24 small onions