1. Preheat oven to 350 degrees F (175 degrees C).
2. Melt 3 tablespoons butter in a medium skillet over medium-high heat. Saute onion until golden.
3. In a 2 quart casserole dish, mix together onion, broccoli, soup, cheese, mayonnaise, eggs, garlic salt, pepper, seasoned salt, and lemon juice. Sprinkle crushed crackers over top and dot with remaining 2 tablespoons butter.
4. Bake uncovered in preheated oven for 45 minutes, until heated through and browned on top.
Calories 423 kcal 21%
Carbohydrates 11.8 g 4%
Cholesterol 88 mg 29%
Fat 39.2 g 60%
Fiber 2.5 g 10%
Protein 8.3 g 17%
Sodium 812 mg 32%