United forked out £40m to sign the 23-year-old from Ajax Amsterdam last summer but he has started just two Premier League games.
The likes of Paul Pogba, Fred, Scott McTominay and Nemanja Matic have been preferred to Van de Beek in the first half of the 2020/2021 campaign.
Netherlands manager Frank De Boer suggested earlier in the week that Van De Beek might have to change clubs to brighten his chances of featuring at EURO 2020 but Solskjaer is adamant his time will come.
"I've answered this question so many times," the Norwegian said ahead of Manchester United’s FA Cup third round tie against Watford on Saturday.
"There are so many examples of players needing a little bit of time – quality players. We have many players ourselves and there are other clubs with examples. Sometimes it takes time. You don't expect people who care for him to be quiet at times, especially when they want the best for them.
"Donny is going to play tomorrow. There's another chance for him. Yes, I've spoken to him and reiterated and made him aware how much we rate him. But he'll play tomorrow, and that's a good chance to kick on."
