Question

He said to me "Let us have breakfast "(use:suggested)

Answer 1

Given sentence is Direct speech.
He said to me, "Let us have a breakfast."

We have to use the word "suggested" and make it indirect.

While changing to indirect :-

=> Said to will change to suggested.

=> Me will be ommited.

=> Let us will be ommited.

=> inverted commas will be ommited.

=> "To" will be used in place of inverted commas.

Hence your answer is :-

He suggested to have breakfast.

Answer 2

Heya here is ur answer..
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He suggested me to have breakfast.
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Hope this is helpful to u..