Here is a sample meal plan based on your instructions:

**Breakfast:**

- Banana (medium): 1 - 105 calories
- Apple (medium): 1 - 95 calories
- Orange (medium): 1 - 60 calories
- Dark Chocolate (5g): - 28 calories

**Mid-Morning Snack:**

- Dairy Milk (5g): - 25 calories

**Lunch:**

- 1 Mini Burger (60g): - 170 calories

**Afternoon Snack:**

- 1 Mango (medium): - 99 calories

**Dinner:**

- Coffee Cake (30g): - 18 calories

**Total Breakfast Calories = 375 Calories**

**Grand Total Calories = 500 Calories**

**Nutritional Breakdown:**

- Fat: Aim for 15% to 20% of grand total calories = 75 to 100 calories.
- Carbohydrates: Target 50% to 60% of grand total calories = 250 to 300 calories.
- Protein: Ensure 20% to 25% of grand total calories = 100 to 125 calories.

Note: The calories from fat, protein, and carbohydrates have been approximated based on general nutritional recommendations. It may slightly differ from actual nutrient content of the food items. Specific adjustments will be made accordingly to ensure the total calorie count aligns with the '500' calorie target.