Recipe - Asparagus Pea And Mushroom Stew With Basil

2 tablespoon Olive oil
2 tablespoon Butter
1 lg Onion; cut or sliced up thin
1 md Clove garlic; minced
2 pound Asparagus; trimmed and cut
diagonally into 1inch
pieces
One half pound Mushrooms; cut or sliced up thin
3 tablespoon Lemon juice; from 1 lemon
1 cup Chicken stock or canned
chicken broth
2 tablespoon Minced fresh basil
2 cup Frozen sweet peas; thawed
One half teaspoon Salt
One fourth teaspoon Ground black pepper
4