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We study the statistical properties of first-passage Brownian functionals(FPBFs) of an Ornstein-Uhlenbeck (OU) process in the presence of stochasticresetting. We consider a one dimensional set-up where the diffusing particlesets off from $x_0$ and resets to $x_R$ at a certain rate $r$. The particlediffuses in a harmonic potential (with strength $k$) which is centered aroundthe origin. The center also serves as an absorbing boundary for the particleand we denote the first passage time of the particle to the center as $t_f$. Inthis set-up, we investigate the following functionals: (i) local time $T_{loc}= \int _0^{t_f}d \tau ~ \delta (x-x_R)$ i.e., the time a particle spends around$x_R$ until the first passage, (ii) occupation or residence time $T_{res} =\int _0^{t_f} d \tau ~\theta (x-x_R)$ i.e., the time a particle typicallyspends above $x_R$ until the first passage and (iii) the first passage time$t_f$ to the origin. We employ the Feynman-Kac formalism for renewal process toderive the analytical expression for the first moment of all the three FPBFsmentioned above. In particular, we find that resetting can either prolong orshorten the mean residence and first passage time depending on the systemparameters. The transition between these two behaviors or phases can becharacterized precisely in terms of optimal resetting rates, whichinterestingly undergo a continuous transition as we vary the trap stiffness$k$. We characterize this transition and identify the critical -parameter \&-coefficient for both the cases. We also showcase other interesting interplaybetween the resetting rate and potential strength on the statistics of theseobservables. Our analytical results are in excellent agreement with thenumerical simulations.

First-passage functionals for Ornstein Uhlenbeck process with stochastic resetting