A good dictionary (whether Korean-Korean or Korean-your_language) will indicate word structure and show compound tensing. In this example, the 빱 in brackets and the "q" in the romanization both show that tensing occurs, and "cpd n." tags the word as a compound noun. https://twitter.com/ZevHandel/status/1357574133157036033

The reference is: New Korean-English Dictionary 韓美大辭典 by Samuel E. Martin, Yang He Lee, and Sung-Un Chang, published by Minjungseogwan 民眾書館 1968/1977, p. 854. It's old but it's packed with great information.

Here's an entry from an interesting dictionary, the prescriptive 표준 한국어발음대사전 (A Korean Pronunciation Dictionary) published by KBS as a guide to standard pronunciation for broadcasters, with IPA.

For 비빔밥, it gives "비빔빱 pibimp'ap" (the apostrophe indicating tense)