Stuffed Meat Loaf

2 eggs
2 tablespoons milk
1/4 cup catsup
1 1/2 teaspoons salt
1/8 teaspoon pepper
1 1/2 pounds lean ground beef

Stuffing
1/2 pound fresh mushrooms, sliced
1 medium onion, chopped
2 tablespoons butter or margarine
2 cups soft bread crumbs
2 tablespoons chopped fresh parsley
1/2 teaspoon dried thyme
1/2 teaspoon salt
1/8 teaspoon pepper

In a large bowl, beat eggs, milk, catsup, salt and pepper. Add beef and mix well. Pat half of the meat mixture into a greased 9 x 5-inch loaf pan; set aside.

For stuffing, saut