Cut unpeeled eggplant lengthwise in 1/4-inch slices. Lightly salt and place on plate; place a baking pan filled with heavy cans on top of eggplant. Let stand 1 hour; drain off accumulated liquid. Dip each slice in flour, then into beaten eggs. Sauté in oil in large skillet, a few slices at a time, until browned on both sides. Drain on paper towel. Reserve about 1/3 cup mozzarella cheese; combine remaining cheese with Spam. Spread about 2 tablespoons sauce over bottom of lightly-greased 1-quart baking dish. Cover with a layer of eggplant. Add layer of Spam mixture; spread with sauce. Repeat layers ending with sauce. Sprinkle with reserved cheese. Bake in 400ºF.  oven 15 minutes, or until mixture is hot and cheese melts on top. Let stand 5 minutes before cutting. For Marinara Sauce: In a medium saucepan, sauté onion, celery, and garlic in oil. Add remaining ingredients and simmer 15 minutes.
 Nice to know: You'll have an extra cup of sauce. Freeze it and use another day for Rice Stuffing. Source: "Official Spam website at http://www.spam.com" S(Formatted for MC5): "10-11-1999 by Joe Comiskey - jcomiskey@krypto.net" Per serving: 863 Calories (kcal); 56g Total Fat; (59% calories from fat); 52g Protein; 32g Carbohydrate; 526mg Cholesterol; 2427mg Sodium Food Exchanges: 1 1/2 Grain(Starch); 7 Lean Meat; 1 Vegetable; 0 Fruit; 7 1/2 Fat; 0 Other Carbohydrates Recipe by: n/a Converted by MM_Buster v2.0n.