Baked Fish and Vegetables

4 each white fish fillets or cod or perch (total of 16-20 oz.) * 16 ounces mixed vegetables frozen 1 small onion diced 1 teaspoon lemon juice or fresh lemon,[...]

2 pounds red snapper fillets sea bass fillets, or whole 1 x salt and black pepper * 2 1/2 each lemons halved 2 teaspoons fennel seeds 1/2 cup butter or[...]