Prevent Cascade delete when the client is deleted - entity-framework-core

Question

I'm having following configurations and relationships. i.e. when a Meal is deleted, relevant MealSubMeals should get deleted but not SubMeal. This is working as expected with following configuration. However, I don't want any MealSubMeals get deleted when a SubMeal is deleted. Instead, EF should throw an error when attempted to delete a SubMeal while MealSubMeals exist.
How do I achieve above? I probably don't want any cyclic relationships within my db.
Thanks!
public class Meal
{
public int Id { get; set; }
public string? MealName { get; set; }
public ICollection<MealSubMeal>? MealSubMeals { get; set; }
}
public class MealSubMeal
{
public int Id { get; set; }
public int MealId { get; set; }
public Meal? Meal { get; set; }
public bool Optional { get; set; }
public decimal SubMealPrice { get; set; }
public int SubMealId { get; set; }
public SubMeal? SubMeal { get; set; }
}
public class SubMeal
{
public int Id { get; set; }
public string? SubMealName { get; set; }
public string? SubMealDescription { get; set; }
}
public class MealConfiguration : IEntityTypeConfiguration<Meal>
{
public void Configure(EntityTypeBuilder<Meal> builder)
{
builder.Property(t => t.MealName).HasMaxLength(40).IsRequired();
builder.HasIndex(t => t.MealName).IsUnique();
builder.Property(t => t.Price).HasPrecision(10, 2).IsRequired();
}
}
public class MealSubMealConfiguration : IEntityTypeConfiguration<MealSubMeal>
{
public void Configure(EntityTypeBuilder<MealSubMeal> builder)
{
builder.HasOne(t => t.Meal).WithMany(t => t.MealSubMeals).HasForeignKey(t => t.MealId).IsRequired();
builder.HasOne(t => t.SubMeal).WithMany().HasForeignKey(t => t.SubMealId).IsRequired();
builder.HasIndex(t => new { t.MealId, t.SubMealId }).IsUnique();
builder.Property(t => t.SubMealPrice).HasPrecision(10, 2).IsRequired();
}
}
public class SubMealConfiguration : IEntityTypeConfiguration<SubMeal>
{
public void Configure(EntityTypeBuilder<SubMeal> builder)
{
builder.Property(t => t.SubMealName).HasMaxLength(40).IsRequired();
builder.HasIndex(t => t.SubMealName).IsUnique();
builder.Property(t => t.SubMealDescription).HasMaxLength(200);
}
}