Forest won 2-1 as Arnaud Kalimuendo's opener was canceled out by Mike van der Hoorn before Igor Jesus struck an 88th minute winner.
Dyche said afterwards: “We started the second half well and got the goal. We conceded from what is a poor decision in my opinion from the referee, but we still have to deal with that. We didn’t, and they get to 1-1.
“Then the crowd and feel changes, they’re pushing forward, but the substitutes made a massive difference, which I’m really pleased with.
“I’m pleased with the squad. We’re managing so many different things at the minute with players returning from injury, so we’re trying to get the right outcome while getting players fit and ready.
“We had a real control of the game overall; being away in Europe isn’t easy. It was a super goal and I’m really pleased for our fans.
“I’m very pleased with the players and the result, and long may it continue. I’m pleased for everyone concerned.”