1 lb. ground beef
1/2 c. chopped onion
2 (1 1/4 oz.) env. taco seasoning mix
3/4 c. Bisquick
Shredded lettuce
Sliced ripe olives
1 1/4 c. milk
3 beaten eggs
1 c. shredded processed cheese
1 diced tomato

Preheat oven to 400 degrees. Spray 8 x 8 inch square dish with Pam. In skillet, brown beef and onion; drain well. Stir in taco mix; spoon into dish. Beat with wire whisk Bisquick, milk, and eggs. Pour over beef. Bake 25 minutes. Sprinkle with cheese. Bake 2-3 additional minutes until cheese melts. Cool 5 minutes. Cut into squares. Top with shredded lettuce, diced tomatoes, and olives. 6 to 8 servings.