Using this approach, here's a sample meal plan:

**Breakfast:**

- 1 Mini Apple : 52 kcal 
- 0.5 Banana: 45 kcal 
- 1 cup diced Watermelon : 46 kcal
- 2 Hard Boiled Eggs: 156 kcal

Total 'Breakfast' calories = 299 kcal

The total exceeds the target of 250 calories. To bring it within the target, let's remove 1 egg from the meal.

**Revised Breakfast:**

- 1 Mini Apple : 52 kcal 
- 0.5 Banana: 45 kcal 
- 1 cup diced Watermelon : 46 kcal
- 1 Hard Boiled Egg: 78 kcal

Total 'Breakfast' calories = 221 kcal

However, to balance the protein content, small portion of Greek Yogurt will be added.

**Final Breakfast:**

- 1 Mini Apple : 52 kcal 
- 0.5 Banana: 45 kcal 
- 1 cup diced Watermelon : 46 kcal
- 1 Hard Boiled Egg: 78 kcal
- 2 tablespoons of Greek Yogurt: 20 Kcal

Total 'Breakfast' calories = 241 kcal

**Grand Total Calories = 241 kcal**

**Nutritional Breakdown:** 

- Fat: 6g (around 20% of grand total calories). 
- Carbohydrates: 35g (around 60% of grand total calories). 
- Protein: 12g (around 20% of grand total calories).  

This meal plan totalling 241 calories is pretty close to the target 250 calories, and meets dietary requirements for suitable amounts of fat, carbohydrates, and proteins.
Please note that Brand names and product details are not provided as you didn't specified that you want them, these generic informations can be replaced with brand's specific nutritional facts for more accurate results.